Respuesta :
Answer:
x = 0
Step-by-step explanation:
Since her work is correct, I'm assuming that 1/2x = -1/2x is what you don't understand.
To solve this equation, add -1/2x to both sides and put 0 in its place. Now you have:
(1)x = 0
Divide both sides by 1.
x = 0