(15b-7)-7(2b+1)=-7

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Solution for (15b-7)-7(2b+1)=-7 equation: 



(15b-7)-7(2b+1)=-7

We move all terms to the left:

(15b-7)-7(2b+1)-(-7)=0

We add all the numbers together, and all the variables

(15b-7)-7(2b+1)+7=0

We multiply parentheses

(15b-7)-14b-7+7=0

We get rid of parentheses

15b-14b-7-7+7=0

We add all the numbers together, and all the variables

b-7=0

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

b=7

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