Question
Solve the pair of linear equations, Also find p if p = 2x + 3
Hint:
find x by eliminating y and find y by substituting x in the equations .
The correct answer is: x = 2 ; y = 0 ; p = 7
Ans :- x = 2 ; y = 0 ; p = 7
Explanation :-
Step 1 :- Find x by eliminating y .
Adding eq1 and eq2
Step 2:- substitute x = 2 in eq 1 to get y
Step 3:- calculate P
Given p = 2x + 3
is the solution to the equation and value of p = 7
Related Questions to study
Solve: by using substitution method.
Solve: by using substitution method.
Solve: 3x + y = 8; 5x + y = 10 by using elimination method.
Solve: 3x + y = 8; 5x + y = 10 by using elimination method.
Solve and by using elimination method.
Solve and by using elimination method.
Solve by using elimination method:
Solve by using elimination method:
Solve by using elimination method. .
Solve by using elimination method. .
Solve the following equation by balancing on both sides: b) 6n+7= 3n+25
Solve the following equation by balancing on both sides: b) 6n+7= 3n+25
Solve the following equation by balancing on both sides: a) 5m+9 = 4m + 23
Solve the following equation by balancing on both sides: a) 5m+9 = 4m + 23
Solve:
Solve:
Which of the following could be the x-coordinate of a solution to the system of equations above?
Note:
If we had to find the y-coordinate of the system of equations, then we put this value of x in the equation to get the value of y. Here, we got a quadratic equation of x, which did not have any term containing x, so it was easier to solve. If the quadratic equation was of the form , then we would use the quadratic formula to solve the equation.
Which of the following could be the x-coordinate of a solution to the system of equations above?
Note:
If we had to find the y-coordinate of the system of equations, then we put this value of x in the equation to get the value of y. Here, we got a quadratic equation of x, which did not have any term containing x, so it was easier to solve. If the quadratic equation was of the form , then we would use the quadratic formula to solve the equation.
Solve the equation and check your result 6(3m + 2) – 2(6m – 1) = 3(m – 8) – 6(7m – 6) +9m
Solve the equation and check your result 6(3m + 2) – 2(6m – 1) = 3(m – 8) – 6(7m – 6) +9m
Solve and check your answer: 3x – 2(2x – 5) = 2(x + 3) – 8
Solve and check your answer: 3x – 2(2x – 5) = 2(x + 3) – 8
Solve: 16 = 4 + 3(x + 2)
Solve: 16 = 4 + 3(x + 2)
The graph of the function f is shown in the xy-plane above, where y =f . Which of the following functions could define f ?
Note:
We need to know properties about factors, multiplicity, leading co-efficients and turning points to find out the function from a graph.
The graph of the function f is shown in the xy-plane above, where y =f . Which of the following functions could define f ?
Note:
We need to know properties about factors, multiplicity, leading co-efficients and turning points to find out the function from a graph.