3+4b-5b=15

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Solution for 3+4b-5b=15 equation: 


b in (-oo:+oo)

4*b-(5*b)+3 = 15 // - 15

4*b-(5*b)-15+3 = 0

4*b-5*b-15+3 = 0

-b-12 = 0 // + 12

-b = 12 // * -1

b = -12

b = -12

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