2-2b=b-7

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Solution for 2-2b=b-7 equation: 



2-2b=b-7

We move all terms to the left:

2-2b-(b-7)=0

We get rid of parentheses

-2b-b+7+2=0

We add all the numbers together, and all the variables

-3b+9=0

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

-3b=-9

b=-9/-3

b=+3

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