49=-7(6+b)

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Solution for 49=-7(6+b) equation: 



49=-7(6+b)

We move all terms to the left:

49-(-7(6+b))=0

We add all the numbers together, and all the variables

-(-7(b+6))+49=0



We calculate terms in parentheses: -(-7(b+6)), so:

-7(b+6)

We multiply parentheses

-7b-42

Back to the equation:

-(-7b-42)



We get rid of parentheses

7b+42+49=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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