-2b+1=-9

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Solution for -2b+1=-9 equation: 


b in (-oo:+oo)

1-2*b = -9 // + 9

1-2*b+9 = 0

10-2*b = 0 // - 10

-2*b = -10 // : -2

b = -10/(-2)

b = 5

b = 5

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