-7b-4=80

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Solution for -7b-4=80 equation: 


b in (-oo:+oo)

-7*b-4 = 80 // - 80

-7*b-80-4 = 0

-7*b-84 = 0 // + 84

-7*b = 84 // : -7

b = 84/(-7)

b = -12

b = -12

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