86=-5+7b

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Solution for 86=-5+7b equation: 



86=-5+7b

We move all terms to the left:

86-(-5+7b)=0

We add all the numbers together, and all the variables

-(7b-5)+86=0

We get rid of parentheses

-7b+5+86=0

We add all the numbers together, and all the variables

-7b+91=0

We move all terms containing b to the left, all other terms to the right

-7b=-91

b=-91/-7

b=+13

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