12x+81=24x+9

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Solution for 12x+81=24x+9 equation: 



12x+81=24x+9

We move all terms to the left:

12x+81-(24x+9)=0

We get rid of parentheses

12x-24x-9+81=0

We add all the numbers together, and all the variables

-12x+72=0

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

-12x=-72

x=-72/-12

x=+6

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