1+3b-7b=13

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Solution for 1+3b-7b=13 equation: 


b in (-oo:+oo)

3*b-(7*b)+1 = 13 // - 13

3*b-(7*b)-13+1 = 0

3*b-7*b-13+1 = 0

-4*b-12 = 0 // + 12

-4*b = 12 // : -4

b = 12/(-4)

b = -3

b = -3

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