3b+9b=12

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Solution for 3b+9b=12 equation:



3b+9b=12
We move all terms to the left:
3b+9b-(12)=0
We add all the numbers together, and all the variables
12b-12=0
We move all terms containing b to the left, all other terms to the right
12b=12
b=12/12
b=1

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