12b=6b+42

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Solution for 12b=6b+42 equation: 



12b=6b+42

We move all terms to the left:

12b-(6b+42)=0

We get rid of parentheses

12b-6b-42=0

We add all the numbers together, and all the variables

6b-42=0

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

6b=42

b=42/6

b=7

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