Question

Suppose x = 7 is a solution to the equation 4x − 2(x + a) = 8. Find the value of a that makes the equation true.Group of answer choices62-253

Answer 1

a=3 if x=7 makes the equation true

Explanation:

4x - 2(x+a) = 8

4(7) - 2(7+a) = 8

28 - 2(7+a) = 8

-2(7+a) = -20

7+a = 10

a = 3

Therefore, a=3 if x=7.