9b+42=12

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Solution for 9b+42=12 equation: 



9b+42=12

We move all terms to the left:

9b+42-(12)=0

We add all the numbers together, and all the variables

9b+30=0

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

9b=-30

b=-30/9

b=-3+1/3

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