3+x=2x+6

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Solution for 3+x=2x+6 equation: 



3+x=2x+6

We move all terms to the left:

3+x-(2x+6)=0

We get rid of parentheses

x-2x-6+3=0

We add all the numbers together, and all the variables

-1x-3=0

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

-x=3

x=3/-1

x=-3

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