9b+4=3b-9

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Solution for 9b+4=3b-9 equation: 



9b+4=3b-9

We move all terms to the left:

9b+4-(3b-9)=0

We get rid of parentheses

9b-3b+9+4=0

We add all the numbers together, and all the variables

6b+13=0

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

6b=-13

b=-13/6

b=-2+1/6

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