3(x-7)-x=2x=21

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Solution for 3(x-7)-x=2x=21 equation: 



3(x-7)-x=2x=21

We move all terms to the left:

3(x-7)-x-(2x)=0

We add all the numbers together, and all the variables

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

We multiply parentheses

-3x+3x-21=0

We add all the numbers together, and all the variables

-21!=0

There is no solution for this equation

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