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

-30x+12=0

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

-30x=-12

x=-12/-30

x=2/5

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