9b+3b+30=7+7b+3

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Solution for 9b+3b+30=7+7b+3 equation: 



9b+3b+30=7+7b+3

We move all terms to the left:

9b+3b+30-(7+7b+3)=0

We add all the numbers together, and all the variables

9b+3b-(7b+10)+30=0

We add all the numbers together, and all the variables

12b-(7b+10)+30=0

We get rid of parentheses

12b-7b-10+30=0

We add all the numbers together, and all the variables

5b+20=0

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

5b=-20

b=-20/5

b=-4

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