-13=2/7b-7

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Solution for -13=2/7b-7 equation: 


b in (-oo:+oo)

-13 = (2/7)*b-7 // - (2/7)*b-7

7-((2/7)*b)-13 = 0

(-2/7)*b-13+7 = 0

-2/7*b-6 = 0 // + 6

-2/7*b = 6 // : -2/7

b = 6/(-2/7)

b = -21

b = -21

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