7(1-7b)=-8(1+6b)

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Solution for 7(1-7b)=-8(1+6b) equation: 



7(1-7b)=-8(1+6b)

We move all terms to the left:

7(1-7b)-(-8(1+6b))=0

We add all the numbers together, and all the variables

7(-7b+1)-(-8(6b+1))=0

We multiply parentheses

-49b-(-8(6b+1))+7=0



We calculate terms in parentheses: -(-8(6b+1)), so:

-8(6b+1)

We multiply parentheses

-48b-8

Back to the equation:

-(-48b-8)



We get rid of parentheses

-49b+48b+8+7=0

We add all the numbers together, and all the variables

-1b+15=0

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

-b=-15

b=-15/-1

b=+15

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