b-7=2b-1

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Solution for b-7=2b-1 equation: 



b-7=2b-1

We move all terms to the left:

b-7-(2b-1)=0

We get rid of parentheses

b-2b+1-7=0

We add all the numbers together, and all the variables

-1b-6=0

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

-b=6

b=6/-1

b=-6

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