Question

Verify that -(-x) =x for x=10/13​

Answer 1

$\sf let \: \: x = \frac{10}{13}$

then ,

Proof :

$\sf \cancel - ( \cancel- \frac{10}{13} ) = \frac{10}{13}$

$\sf \frac{10}{13} = \frac{10}{13}$

$\sf \therefore \: \: LHS = RHS$

Hence , Verified

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