Question

Which equation has solution x = -3?
A)
2x - 7 = -1
B)
3x + 8 = 1
C)
1
2
x + 8 = 10
D)
1
2
(2x - 6) = -6

Answer 1

the answer is a

Answer 2

because 2(-3) - 7 = -1 is true if the x value equals to -3

Answer 3

okay try plugging in -3 into all the x's to see if it well equal up to that number can you do that?