-3b-3(1+7b)=-147

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Solution for -3b-3(1+7b)=-147 equation: 



-3b-3(1+7b)=-147

We move all terms to the left:

-3b-3(1+7b)-(-147)=0

We add all the numbers together, and all the variables

-3b-3(7b+1)-(-147)=0

We add all the numbers together, and all the variables

-3b-3(7b+1)+147=0

We multiply parentheses

-3b-21b-3+147=0

We add all the numbers together, and all the variables

-24b+144=0

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

-24b=-144

b=-144/-24

b=+6

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