9x-6=6x-21

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



9x-6=6x-21

We move all terms to the left:

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

We get rid of parentheses

9x-6x+21-6=0

We add all the numbers together, and all the variables

3x+15=0

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

3x=-15

x=-15/3

x=-5

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