-9-7b-2b=-99

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Solution for -9-7b-2b=-99 equation: 


b in (-oo:+oo)

-(7*b)-(2*b)-9 = -99 // + 99

99-(7*b)-(2*b)-9 = 0

99-7*b-2*b-9 = 0

90-9*b = 0 // - 90

-9*b = -90 // : -9

b = -90/(-9)

b = 10

b = 10

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