7=7-8b-8

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



7=7-8b-8

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(-8b-1)+7=0

We get rid of parentheses

8b+1+7=0

We add all the numbers together, and all the variables

8b+8=0

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

8b=-8

b=-8/8

b=-1

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