-49=7+7b

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Solution for -49=7+7b equation: 



-49=7+7b

We move all terms to the left:

-49-(7+7b)=0

We add all the numbers together, and all the variables

-(7b+7)-49=0

We get rid of parentheses

-7b-7-49=0

We add all the numbers together, and all the variables

-7b-56=0

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

-7b=56

b=56/-7

b=-8

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