4x-9=9+3x

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Solution for 4x-9=9+3x equation: 



4x-9=9+3x

We move all terms to the left:

4x-9-(9+3x)=0

We add all the numbers together, and all the variables

4x-(3x+9)-9=0

We get rid of parentheses

4x-3x-9-9=0

We add all the numbers together, and all the variables

x-18=0

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

x=18

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