Question

Verify that – (-x) is the same as x for `"x" = 13/17`.

Answer 1

x = `13/17`

The additive inverse of x = `13/17  "is" - x = (-13)/17 "since" 13/17 + ((-13)/17) = 0.`

The same equality `13/17 + ((-13)/17) = 0`,

shows that the additive inverse of `(-13)/17  "is"  13/17 "or" -((-13)/17) = 13/17` i.e., -(- x) = x.