7-3b=3b+b

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Solution for 7-3b=3b+b equation: 



7-3b=3b+b

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-3b-4b+7=0

We add all the numbers together, and all the variables

-7b+7=0

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

-7b=-7

b=-7/-7

b=1

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