Question

verify that-(-y) = y if y = -5/7

Answer 1

Answer:

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Step-by-step explanation:

-(-(-5/7)=+(-5/7)=-5/7=y

proved

Answer 2

Answer:

verified.

Step-by-step explanation:

if y = -5/7

then ,

L.H.S -

$- ( - y) = - ( - ( - \frac{5}{7} )) = - (\frac{5}{7} ) = - \frac{ 5}{7}$

R.H.S -

$y = - \frac{5}{7}$

L.H.S = R.H.S