3+6x=3x+12

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Solution for 3+6x=3x+12 equation: 



3+6x=3x+12

We move all terms to the left:

3+6x-(3x+12)=0

We get rid of parentheses

6x-3x-12+3=0

We add all the numbers together, and all the variables

3x-9=0

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

3x=9

x=9/3

x=3

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