Question

Verify that - (-x) = x for :
$x=\frac{-13}{17}$

Answer 1

$Puttingx=\frac{-13}{17}in-(-x)=x$

$\Rightarrow -\{-\left(\frac{-13}{17}\right)\}=\frac{-13}{17}$
$\Rightarrow \frac{-13}{17}=\frac{-13}{17}$

$\Rightarrow L.H.S=R.H.S$

Hence, verified.