4x-20=x-7

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Solution for 4x-20=x-7 equation: 



4x-20=x-7

We move all terms to the left:

4x-20-(x-7)=0

We get rid of parentheses

4x-x+7-20=0

We add all the numbers together, and all the variables

3x-13=0

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

3x=13

x=13/3

x=4+1/3

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