Question

verify that-(-x)=x for 1Q x=2/15​

Answer 1

Answer:

LHS=RSH

VERIFICATION:

LHS= -(-x)

= -(-2/15)

= 2/15

RHS= x

= 2/15

Since, RHS=LHS

Hence, verified.

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Answer 2

Answer:

to prove:

$- ( - x) = x$

given that:

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

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

$- ( - x) = - 1 \times - x$

therefore,

$- ( - \frac{2}{15} ) = - 1 \times - \frac{2}{15}$

$- 1 \times - \frac{2}{15} = + \frac{2}{15}$

{because -ve multiplied by a -ve gives +ve, as the 2 -ve signs are cancelled out}

hence,

$- ( - x) = + x$

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