7+3x=x+3x

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Solution for 7+3x=x+3x equation: 



7+3x=x+3x

We move all terms to the left:

7+3x-(x+3x)=0

We add all the numbers together, and all the variables

3x-(+4x)+7=0

We get rid of parentheses

3x-4x+7=0

We add all the numbers together, and all the variables

-1x+7=0

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

-x=-7

x=-7/-1

x=+7

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