-1=-2b+7

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



-1=-2b+7

We move all terms to the left:

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

We get rid of parentheses

2b-7-1=0

We add all the numbers together, and all the variables

2b-8=0

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

2b=8

b=8/2

b=4

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