-x=-55/7 - solution

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Solution for -x=-55/7 equation:

x in (-oo:+oo)

-x = -55/7 // + -55/7

-x-(-55/7) = 0

55/7-x = 0

55/7-x = 0 // - 55/7

-x = -55/7 // * -1

x = 55/7

x = 55/7

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