Question

verify that -(-x)=x for 1,x=5/3 2, x=-7/8​

Answer 1

To prove: -(-x) = x

Proof:

For x =  $\frac{5}{3}$,

- x = $\frac{-5}{3}$

-(-x) = - ( $\frac{-5}{3}$)

-(-x) = $\frac{5}{3}$ = x

                    HENCE PROVED.

For x = $\frac{-7}{8}$,

-x = $\frac{7}{8}$

-(-x) = -( $\frac{7}{8}$)

-(-x) = $\frac{-7}{8}$

                  HENCE PROVED.