3x+9=15+2x

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Solution for 3x+9=15+2x equation: 



3x+9=15+2x

We move all terms to the left:

3x+9-(15+2x)=0

We add all the numbers together, and all the variables

3x-(2x+15)+9=0

We get rid of parentheses

3x-2x-15+9=0

We add all the numbers together, and all the variables

x-6=0

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

x=6

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