12x-21=5x+6

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Solution for 12x-21=5x+6 equation: 



12x-21=5x+6

We move all terms to the left:

12x-21-(5x+6)=0

We get rid of parentheses

12x-5x-6-21=0

We add all the numbers together, and all the variables

7x-27=0

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

7x=27

x=27/7

x=3+6/7

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