9b+7=30

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Solution for 9b+7=30 equation: 



9b+7=30

We move all terms to the left:

9b+7-(30)=0

We add all the numbers together, and all the variables

9b-23=0

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

9b=23

b=23/9

b=2+5/9

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