3+4b=-9

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Solution for 3+4b=-9 equation: 



3+4b=-9

We move all terms to the left:

3+4b-(-9)=0

We add all the numbers together, and all the variables

4b+12=0

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

4b=-12

b=-12/4

b=-3

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