12b-3=18b-5b+9

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Solution for 12b-3=18b-5b+9 equation: 



12b-3=18b-5b+9

We move all terms to the left:

12b-3-(18b-5b+9)=0

We add all the numbers together, and all the variables

12b-(13b+9)-3=0

We get rid of parentheses

12b-13b-9-3=0

We add all the numbers together, and all the variables

-1b-12=0

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

-b=12

b=12/-1

b=-12

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