6x-30=9+3x

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



6x-30=9+3x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

6x-3x-9-30=0

We add all the numbers together, and all the variables

3x-39=0

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

3x=39

x=39/3

x=13

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