12x+18=6x+9

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Solution for 12x+18=6x+9 equation: 



12x+18=6x+9

We move all terms to the left:

12x+18-(6x+9)=0

We get rid of parentheses

12x-6x-9+18=0

We add all the numbers together, and all the variables

6x+9=0

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

6x=-9

x=-9/6

x=-1+1/2

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