-6+21x=9x+6

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Solution for -6+21x=9x+6 equation: 



-6+21x=9x+6

We move all terms to the left:

-6+21x-(9x+6)=0

We get rid of parentheses

21x-9x-6-6=0

We add all the numbers together, and all the variables

12x-12=0

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

12x=12

x=12/12

x=1

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