9x+6=-6+6x+21

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



9x+6=-6+6x+21

We move all terms to the left:

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

We add all the numbers together, and all the variables

9x-(6x+15)+6=0

We get rid of parentheses

9x-6x-15+6=0

We add all the numbers together, and all the variables

3x-9=0

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

3x=9

x=9/3

x=3

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