Question

Example 4: Verify that-(-x) is the same as x for x=
−21/31
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Answer 1

Step-by-step explanation:

Step-by-step explanation:

x=-21/31

(-x)=21/31

-(-x)=-21/31hence proved.

Answer 2

Step-by-step explanation:

,when minus is multiplied by minus then the result is positive .

x = - 21/ 31

- x= -21/31

Therefore

x = 21/31

-(x) = 21/31

Therefore

x = 21 / 31 × -1

So,

- (-x ) = -21/31