Question

Which equations are true?

Choose all answers that apply:

A. −x + 0 + (−x) = 0

B. −x − (−x) = 0

C. None of the above

Answer 1

Equation B. is true for all values of x.

Answer 2

B is correct

Explanation:

-(-x) = x, because a double negative like this equals a positive.

Therefore, you are actually saying -x+x= 0 which is true.