b/13-3b=-8/13

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Solution for b/13-3b=-8/13 equation: 


b in (-oo:+oo)

b/13-(3*b) = -8/13 // + -8/13

b/13-(3*b)-(-8/13) = 0

b/13-3*b+8/13 = 0

8/13-38/13*b = 0 // - 8/13

-38/13*b = -8/13 // : -38/13

b = -8/13/(-38/13)

b = 4/19

b = 4/19

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