Question

verify that -(-x)=x,when:(i) x=8/5
(ii)x=-5/7​

Answer 1

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Question - verify that -(-x)=x,when:(i) x=8/5

(ii)x=-5/7

Answer -

Equation - - - - - - - - - - - (-x) =x

Taking x as 8/5

-(-8/5)=8/5. ( minus * minus = plus)

Then

Solving the lhs

We get

8/5=8/5

Putting x as 5/7

-(-5/7)=5/7. (. Minus*minus=plus)

5/7=5/7

Hope it helps you

Answer 2

answer

-(-x) = x

1) x= 8/5

according to question

-(-(8/5))

-(-8/5)

+8/5

8/5

2) x =-5/7

-(-(-5/7))

-(+5/7)

-5/7