Answer
H
Work Step by Step
After substituting -2 for the variable, the equation must hold true,
if $-2$ is a solution.
Substituting $-2$ for x in each of the equations, we have
F: $1=-1$ ... no
G: $-7=-11$ ... no
H: $1=1 ... YES$
I: $-5=-7$ ... no
Answer : H
