3x=x-4x

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Solution for 3x=x-4x equation: 



3x=x-4x

We move all terms to the left:

3x-(x-4x)=0

We add all the numbers together, and all the variables

3x-(-3x)=0

We get rid of parentheses

3x+3x=0

We add all the numbers together, and all the variables

6x=0

x=0/6

x=0

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