b/13-7b/13=18/13

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Solution for b/13-7b/13=18/13 equation: 


b in (-oo:+oo)

b/13-((7*b)/13) = 18/13 // - 18/13

b/13-((7*b)/13)-(18/13) = 0

b/13+(-7/13)*b-18/13 = 0

-6/13*b-18/13 = 0 // + 18/13

-6/13*b = 18/13 // : -6/13

b = 18/13/(-6/13)

b = -3

b = -3

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