Mathematics
Grade-7
Easy

Question

Solve for k.
3k + 5 = 23

  1. k = 4
  2. k = 5
  3. k = 6
  4. k = 7

hintHint:

Use two step process to solve 

First step be  subtraction 

And second step be division  .
 

The correct answer is: k = 6


    Given 3k + 5 = 23
    to find k .
    Step 1 : Subtract 5 from each side.
    3k + 5 - 5 = 23 – 5
    3k = 18
    Step 2 :Divided each side by 3.
    3k/3  = 18/3
    k = 6
    After solving we get k = 6 .

    First step be either addition / subtraction if +ve sign is there in lhs with number then subtract this to both side and vice versa .

    And second step be division or multiplication , after above process if in lhs variable is in multiply divide the same to both side and vice versa .
     

    Related Questions to study

    Grade-7
    Mathematics

    Write an equation to solve the following word problem:
    Samantha went bowling with her friends. She paid $3 to rent shoes and then $4.75 for each game of bowling. If she spent a total of $22, then find the total number of games Shakira played..

    In this question , we have to find the equation for given situation. We write the equation for the total money she spend . Always consider variable of that term which they asked for the find out. Apply same methods in the similar questions.

    Write an equation to solve the following word problem:
    Samantha went bowling with her friends. She paid $3 to rent shoes and then $4.75 for each game of bowling. If she spent a total of $22, then find the total number of games Shakira played..

    MathematicsGrade-7

    In this question , we have to find the equation for given situation. We write the equation for the total money she spend . Always consider variable of that term which they asked for the find out. Apply same methods in the similar questions.

    Grade-7
    Mathematics

    The steps in solving 5b - 6 = 24 are

    First step be either addition / subtraction if +ve sign is there with number in lhs  then subtract this to both side and vice versa .

    And second step be division or multiplication , after above process if in lhs variable is in multiply divide the same to both side and vice versa .
     

    The steps in solving 5b - 6 = 24 are

    MathematicsGrade-7

    First step be either addition / subtraction if +ve sign is there with number in lhs  then subtract this to both side and vice versa .

    And second step be division or multiplication , after above process if in lhs variable is in multiply divide the same to both side and vice versa .
     

    Grade-7
    Mathematics

    Solve   -3y + 7 = 22

    First step be either addition / subtraction
    And second step be division or multiplication .

    Solve   -3y + 7 = 22

    MathematicsGrade-7

    First step be either addition / subtraction
    And second step be division or multiplication .

    parallel
    Grade-7
    Mathematics

    Solve -5t + 9 = 24

    First perform Addition/Subtraction then perform the multiplication/division.

    Solve -5t + 9 = 24

    MathematicsGrade-7

    First perform Addition/Subtraction then perform the multiplication/division.

    Grade-7
    Mathematics

    Solve 3x - 7 = 32.

    Solve 3x - 7 = 32.

    MathematicsGrade-7
    Grade-7
    Mathematics

    Ronnie charged his customers a flat fee of $25 to fix computers. Then he charged $20 for each hour that he spent fixing the computer. If Ronnie made $175 off of his first customer, then find the total hours he spends on working.

    In this question, two term were given one is fixed number and another is not fixed. The not fixed number is always would be variable. Writing equation after knowing these two terms would be easy.

    Ronnie charged his customers a flat fee of $25 to fix computers. Then he charged $20 for each hour that he spent fixing the computer. If Ronnie made $175 off of his first customer, then find the total hours he spends on working.

    MathematicsGrade-7

    In this question, two term were given one is fixed number and another is not fixed. The not fixed number is always would be variable. Writing equation after knowing these two terms would be easy.

    parallel
    Grade-7
    Mathematics

    Kaya rented a limousine for prom. There was a one-time charge of $100, plus an hourly rate of $45. Her total cost for the night was $347.50. Find the total hours Kaya rent the limo for.

    In this question we have to find the total time and also write the equation. IF plus was in the question that means addition . You have to just find which is constant and which is variable and then write the equation according them.

    Kaya rented a limousine for prom. There was a one-time charge of $100, plus an hourly rate of $45. Her total cost for the night was $347.50. Find the total hours Kaya rent the limo for.

    MathematicsGrade-7

    In this question we have to find the total time and also write the equation. IF plus was in the question that means addition . You have to just find which is constant and which is variable and then write the equation according them.

    Grade-7
    Mathematics

    Solve the equation:
    x - 5.5 = 10.5

    In this question, we have to find the value of x. we have given a variable so finding its value you have to separate the variable , use same operations to both side and reduce the variable side and get the answer. Apply same method in similar questions.

    Solve the equation:
    x - 5.5 = 10.5

    MathematicsGrade-7

    In this question, we have to find the value of x. we have given a variable so finding its value you have to separate the variable , use same operations to both side and reduce the variable side and get the answer. Apply same method in similar questions.

    Grade-7
    Mathematics

    The inverse operation needed to solve for p is?
    765 = p – 254

    In this question, we have to find the value of p. we have given a variable so finding its value you have to separate the variable , use same operations to both side and reduce the variable side and get the answer. Apply same method in similar questions.

    The inverse operation needed to solve for p is?
    765 = p – 254

    MathematicsGrade-7

    In this question, we have to find the value of p. we have given a variable so finding its value you have to separate the variable , use same operations to both side and reduce the variable side and get the answer. Apply same method in similar questions.

    parallel
    Grade-7
    Mathematics

    331 students went on a field trip. Six buses were filled, and 7 students traveled in cars. Find the total numbers of students there were on each bus.

    In this question, we have to find the total student in a bus. For that we  consider the number of student in one bus to be x. And then, we write the equation for the given condition . Apply same concept for similar questions.

    331 students went on a field trip. Six buses were filled, and 7 students traveled in cars. Find the total numbers of students there were on each bus.

    MathematicsGrade-7

    In this question, we have to find the total student in a bus. For that we  consider the number of student in one bus to be x. And then, we write the equation for the given condition . Apply same concept for similar questions.

    Grade-7
    Mathematics

    144 = 12z

    In this question, we have to solve the equation, basically we have to find the value of z. And it is linear equation that’s why it contain only one variable so its easy to find the value of z.

    144 = 12z

    MathematicsGrade-7

    In this question, we have to solve the equation, basically we have to find the value of z. And it is linear equation that’s why it contain only one variable so its easy to find the value of z.

    Grade-7
    Mathematics

    The 30 members of a choir are trying to raise $1500 to cover travel costs to a signing camp. They have already raised $600. Write an equation to find the average amount each member can raise in order to meet the goal.

    In this equation, we have to find the equation to find the average amount of each member. There are 30 member and their each raising is unknown so it consider as variable. Then writing equation is easy if you figure out what we need to find out and that would be a variable .

    The 30 members of a choir are trying to raise $1500 to cover travel costs to a signing camp. They have already raised $600. Write an equation to find the average amount each member can raise in order to meet the goal.

    MathematicsGrade-7

    In this equation, we have to find the equation to find the average amount of each member. There are 30 member and their each raising is unknown so it consider as variable. Then writing equation is easy if you figure out what we need to find out and that would be a variable .

    parallel
    Grade-7
    Mathematics

    16 equals k over 11

    In this question, we have to solve the equation, basically we have to find the value of k. And it is linear equation that’s why it contain only one variable so its easy to find the value of k.

    16 equals k over 11

    MathematicsGrade-7

    In this question, we have to solve the equation, basically we have to find the value of k. And it is linear equation that’s why it contain only one variable so its easy to find the value of k.

    Grade-7
    Mathematics

    Eddie scored 27 points more than half of what Duncan scored. Eddie scored 58 points. Find an equation that represents the situation to find total points Duncan scored?

    In this question, we have to find the equation for the given situation. Here the variable is asking term. The word more than is used that means Addition. Like increased by, sum of, more than, the total of ,plus , add etc then it is addition in algebraic expression.

    Eddie scored 27 points more than half of what Duncan scored. Eddie scored 58 points. Find an equation that represents the situation to find total points Duncan scored?

    MathematicsGrade-7

    In this question, we have to find the equation for the given situation. Here the variable is asking term. The word more than is used that means Addition. Like increased by, sum of, more than, the total of ,plus , add etc then it is addition in algebraic expression.

    Grade-7
    Mathematics

    -7b = 49

    In this question, we have to solve the equation, basically we have to find the value of b. And it is linear equation that’s why it contain only one variable so its easy to find the value of b.

    -7b = 49

    MathematicsGrade-7

    In this question, we have to solve the equation, basically we have to find the value of b. And it is linear equation that’s why it contain only one variable so its easy to find the value of b.

    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.