-4b-7(3b-7)=30-6b

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Solution for -4b-7(3b-7)=30-6b equation: 



-4b-7(3b-7)=30-6b

We move all terms to the left:

-4b-7(3b-7)-(30-6b)=0

We add all the numbers together, and all the variables

-4b-7(3b-7)-(-6b+30)=0

We multiply parentheses

-4b-21b-(-6b+30)+49=0

We get rid of parentheses

-4b-21b+6b-30+49=0

We add all the numbers together, and all the variables

-19b+19=0

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

-19b=-19

b=-19/-19

b=1

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