7-b=4b+12

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



7-b=4b+12

We move all terms to the left:

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

We add all the numbers together, and all the variables

-1b-(4b+12)+7=0

We get rid of parentheses

-1b-4b-12+7=0

We add all the numbers together, and all the variables

-5b-5=0

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

-5b=5

b=5/-5

b=-1

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