-x+7=-4x+20

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



-x+7=-4x+20

We move all terms to the left:

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

We add all the numbers together, and all the variables

-1x-(-4x+20)+7=0

We get rid of parentheses

-1x+4x-20+7=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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