-3b+5+b=-15

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


b in (-oo:+oo)

b-3*b+5 = -15 // + 15

b-3*b+5+15 = 0

20-2*b = 0 // - 20

-2*b = -20 // : -2

b = -20/(-2)

b = 10

b = 10

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