4b+3=12b+7

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Solution for 4b+3=12b+7 equation: 



4b+3=12b+7

We move all terms to the left:

4b+3-(12b+7)=0

We get rid of parentheses

4b-12b-7+3=0

We add all the numbers together, and all the variables

-8b-4=0

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

-8b=4

b=4/-8

b=-1/2

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