Question

verify that-(-x)=x for x=-21/-13​

Answer 1

Answer:

Yes, -(- x)=x

Step-by-step explanation:

x=x

21/-13 = 21/-13

Hence proved !!!

Answer 2

$\huge{\mathcal{\blue{Solution}}}$

$\large{Verification}$

$- ( - x) = x \\ - ( - (\frac{ - 21}{ - 13} ) = \frac{ - 21}{ - 13} \\ - ( \frac{21}{ - 13} ) = \frac{ - 21}{ - 13} \\ \frac{21}{13} = \frac{21}{13}$