-3b+1=21-5b

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Solution for -3b+1=21-5b equation: 


b in (-oo:+oo)

1-3*b = 21-(5*b) // - 21-(5*b)

5*b-3*b-21+1 = 0

2*b-20 = 0 // + 20

2*b = 20 // : 2

b = 20/2

b = 10

b = 10

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