3(b-7)=147

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



3(b-7)=147

We move all terms to the left:

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

We multiply parentheses

3b-21-147=0

We add all the numbers together, and all the variables

3b-168=0

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

3b=168

b=168/3

b=56

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