3x+x+3=2x+9

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



3x+x+3=2x+9

We move all terms to the left:

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

We add all the numbers together, and all the variables

4x-(2x+9)+3=0

We get rid of parentheses

4x-2x-9+3=0

We add all the numbers together, and all the variables

2x-6=0

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

2x=6

x=6/2

x=3

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