-1+7x-x=-31 - solution

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Solution for -1+7x-x=-31 equation:

x in (-oo:+oo)

7*x-x-1 = -31 // + 31

7*x-x-1+31 = 0

6*x+30 = 0 // - 30

6*x = -30 // : 6

x = -30/6

x = -5

x = -5

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