3x-30=6x-9

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Solution for 3x-30=6x-9 equation: 



3x-30=6x-9

We move all terms to the left:

3x-30-(6x-9)=0

We get rid of parentheses

3x-6x+9-30=0

We add all the numbers together, and all the variables

-3x-21=0

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

-3x=21

x=21/-3

x=-7

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