3b-12b-4b-18b=7

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Solution for 3b-12b-4b-18b=7 equation: 



3b-12b-4b-18b=7

We move all terms to the left:

3b-12b-4b-18b-(7)=0

We add all the numbers together, and all the variables

-31b-7=0

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

-31b=7

b=7/-31

b=-7/31

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