Question

Verify: $-(-x)=x$ for $x=\frac{2}{15}$.

Answer 1

Given,

$x=\frac{2}{15}$

Then,

$-(-x)$

$=-(-\frac{2}{15})=\frac{2}{15}$

As we know that by the sign rule of multiplication: (-ve) multiplied (-ve) equals (+ve)

Hence, proved $-(-x)=x$.