20x+9=27x-12=x

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Solution for 20x+9=27x-12=x equation: 



20x+9=27x-12=x

We move all terms to the left:

20x+9-(27x-12)=0

We get rid of parentheses

20x-27x+12+9=0

We add all the numbers together, and all the variables

-7x+21=0

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

-7x=-21

x=-21/-7

x=+3

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