Question

Which equation shows the additive inverse of a number? A.a×0=0 B.a+ a=2a. C.a+-a=0. D a+0=a.

Answer 1

The additive inverse of a number consists in adding the given number to the same number but with opposite sign (in this way you obtain a zero result), then, from the given options you can conclude:

a + (-a) = 0