7b-7=2b+8

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Solution for 7b-7=2b+8 equation: 



7b-7=2b+8

We move all terms to the left:

7b-7-(2b+8)=0

We get rid of parentheses

7b-2b-8-7=0

We add all the numbers together, and all the variables

5b-15=0

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

5b=15

b=15/5

b=3

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