12x=20x+9

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Solution for 12x=20x+9 equation: 



12x=20x+9

We move all terms to the left:

12x-(20x+9)=0

We get rid of parentheses

12x-20x-9=0

We add all the numbers together, and all the variables

-8x-9=0

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

-8x=9

x=9/-8

x=-1+1/8

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