Verify – (-x) = x for

Question:

Verify – (-x) = x for

(i) x = 3/5

(ii) x = -7/9

(iii) x = 13/-15

Solution:

(i) x = 3/5

– x = -3/5

– (-x) = – (-3/5)

X = 3/5

(ii) x = -7/9

– x = – (-7/9)

-x = 7/9

– (-x) = – (7/9)

X = – 7/9

(iii) x = 13/-15

– x = – (-13/15)

-x = 13/15

– (-x) = – (13/15)

X = -13/15

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