9-b+5b=2b-7

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Solution for 9-b+5b=2b-7 equation: 



9-b+5b=2b-7

We move all terms to the left:

9-b+5b-(2b-7)=0

We add all the numbers together, and all the variables

4b-(2b-7)+9=0

We get rid of parentheses

4b-2b+7+9=0

We add all the numbers together, and all the variables

2b+16=0

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

2b=-16

b=-16/2

b=-8

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