Question
Choose all the possible values of x where x < 8.
- 5, 6, 7, 8
- 4, 5, 6, 7
- 4, 5, 6, 8
- 5, 6, 7, 10
Hint:
we have to choose all possible value of x which is less than 8. Look all the option match all number and put them in x and compare with 8. Which group is less is our answer.
The correct answer is: 4, 5, 6, 7
Here we have to find the all possible value of x and x < 8.
Firstly ,we have x < 8
At 1, we have
5,6,7,8
Now x = 5 so 5 < 8, it is true.
x = 6 so 6 < 8 , it is true.
x = 7 so 7 < 8, it is true.
x = 8 so 8 < 8 , this is not possible, so it is not true.
At 2, we have:
4, 5,6,7
Now, x = 4 so 4 < 8, it is true.
x = 5 so 5 < 8, it is true.
x = 6 so 6 < 8, it is true.
x = 7 so 7 < 8, it is true.
Therefore, 4,5,6,7 all satisfy in x<8 .
The correct answer is 4, 5, 6, 7
or,
Since the inequality symbol is “<”, the values of x should be less than RHS (8).
So, the possible values of x are 4, 5, 6, 7.
In this question, find the number which satisfy that x< 8. Match all the number and if all are true then it is correct answer.
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In this question, we have to find the equivalent equation . Equivalent means equals. Equivalent equations are algebraic equation that have identical solution or roots.
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Solve by elimination:
4x + 9y = 28
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In this question , we have give two linear equation and we have to solve it by elimination method. In elimination method you have two equation. we have to multiply in both equation by number which is lowest common multiple for one of the variable. Then perform the addition or subtraction to eliminate the variable and substitute the that variable in equation and find the other equation.
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The first step in finding the solution with elimination is _____________.
18x + y = -10
-18x - 9y = 6
In this question, we have to find the first step but the equation is solved by the elimination method. In elimination method you have two equation. we have to multiply in both equation by number which is lowest common multiple for one of the variable. Then perform the addition or subtraction to eliminate the variable and substitute the that variable in equation and find the other equation.
