Question

Which equations are true?
A: -x = -x + x + 0
B: -x = 0 + (-x)
C: None Of The Above ​

Answer 1

Answer: B
Explanation: if you look at A and try to combine like terms, you will add the -x on the right side the the one on the left, cancelling out the x on the left. then you have 0=x+0, and unless x=0, it is not true.
With B, when you add x to the -x, you cancel it out, giving you 0=0, which is true. hope it helps!