Question

Which equation has solution x = -3?

A) 2x - 7 = -1
B) 3x + 8 = 1
C)12x + 8 = 10
D) 1/2(2x - 6) = -6

Answer 1

Substitute all x's:

a. -6 - 7 = -6 + -7 = -13. Choice A is wrong
b. -9 + 8 = -1. Choice B is wrong
c. -36 + 8 = -26. Choice C is wrong
d. 1/2(-6 - 6) = -6. Choice D is correct.

-6 - 6 = -6 + -6 = -12
-12 / 2 = -6

The answer is choice D.

Hope this helped☺☺

Answer 2

D would be the answer
Hipe this helps.
Thanks.