Question

verify that -(-x) is the same as x for x = -21/31​

Answer 1

Step-by-step explanation:

-(-x)=x

like that-(-21/31)= +21/31

Answer 2

Answer:

$\frac{-21}{31}$ = $\frac{-21}{31}$

Step-by-step explanation:

Assuming that x = $\frac{-21}{31}$

we have to plug it into the following equation:

- ( - ($\frac{-21}{31}$)) =  $\frac{-21}{31}$

Since a negative times a negative is positive, we end up with:

-($\frac{21}{31}$) = $\frac{-21}{31}$

After distributing the negative sign, we get:

$\frac{-21}{31}$ = $\frac{-21}{31}$,

Thus, we have verified that -(-x)=x