Question

Verify - (- x) = x for
$x=\frac{13}{-15}$

Answer 1

Given,
$x=\frac{13}{-15}\Rightarrow -x=-\left(\frac{13}{-15}\right)\Rightarrow -x=\frac{13}{15}$
$\Rightarrow L.H.S=-(-x)=\frac{-13}{15}=x=R.H.S$
Hence verified.