Question

Which equation has solution x = -3?


A) 2x - 7 = -1


B) 3x + 8 = 1


C) 1/2x + 8 = 10


D) 1/2(2x - 6) = -6

Answer 1

you could plug in -3 for x into equation equation and see if you get the same thing on both sides

Answer 2

for example
2x-7=-1
replace x with -3
2(-3)-7
-6-7
-13
but -13 is not -1 so x=-3 is not a solution to 2x-7=-1
you try the others

Answer 3

thank you

Answer 4

np