Question

verify the -(-x)equals x for x Equal to -21/31

Answer 1

Answer:

$- ( - x) = x \\ \\ x = \frac{ - 21}{31} \\ - ( - ( \frac{ - 21}{31} )) = ( \frac{ - 21}{31} ) \\identity (- \times - = + ) \\ \frac{ - 21}{31} = \frac{ - 21}{31}$

Step-by-step explanation:

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Answer 2

Answer:

21/31

Step-by-step explanation:

-(-21/31)

because minus +minus = plus

21/31