b/13-3b/13=18/13

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Solution for b/13-3b/13=18/13 equation:


b in (-oo:+oo)

b/13-((3*b)/13) = 18/13 // - 18/13

b/13-((3*b)/13)-(18/13) = 0

b/13+(-3/13)*b-18/13 = 0

-2/13*b-18/13 = 0 // + 18/13

-2/13*b = 18/13 // : -2/13

b = 18/13/(-2/13)

b = -9

b = -9

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