9b-72=4b+4

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Solution for 9b-72=4b+4 equation: 



9b-72=4b+4

We move all terms to the left:

9b-72-(4b+4)=0

We get rid of parentheses

9b-4b-4-72=0

We add all the numbers together, and all the variables

5b-76=0

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

5b=76

b=76/5

b=15+1/5

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