3x+x=2x+4

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Solution for 3x+x=2x+4 equation: 



3x+x=2x+4

We move all terms to the left:

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

We add all the numbers together, and all the variables

4x-(2x+4)=0

We get rid of parentheses

4x-2x-4=0

We add all the numbers together, and all the variables

2x-4=0

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

2x=4

x=4/2

x=2

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