4x-9=9+2x

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Solution for 4x-9=9+2x equation: 



4x-9=9+2x

We move all terms to the left:

4x-9-(9+2x)=0

We add all the numbers together, and all the variables

4x-(2x+9)-9=0

We get rid of parentheses

4x-2x-9-9=0

We add all the numbers together, and all the variables

2x-18=0

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

2x=18

x=18/2

x=9

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