7(b+3)+3b=20

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Solution for 7(b+3)+3b=20 equation: 



7(b+3)+3b=20

We move all terms to the left:

7(b+3)+3b-(20)=0

We add all the numbers together, and all the variables

3b+7(b+3)-20=0

We multiply parentheses

3b+7b+21-20=0

We add all the numbers together, and all the variables

10b+1=0

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

10b=-1

b=-1/10

b=-1/10

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