x+2x=7=3x-7

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Solution for x+2x=7=3x-7 equation: 



x+2x=7=3x-7

We move all terms to the left:

x+2x-(7)=0

We add all the numbers together, and all the variables

3x-7=0

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

3x=7

x=7/3

x=2+1/3

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