4b+12=9

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Solution for 4b+12=9 equation: 



4b+12=9

We move all terms to the left:

4b+12-(9)=0

We add all the numbers together, and all the variables

4b+3=0

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

4b=-3

b=-3/4

b=-3/4

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