2x+4=20-x+7x

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Solution for 2x+4=20-x+7x equation: 



2x+4=20-x+7x

We move all terms to the left:

2x+4-(20-x+7x)=0

We add all the numbers together, and all the variables

2x-(6x+20)+4=0

We get rid of parentheses

2x-6x-20+4=0

We add all the numbers together, and all the variables

-4x-16=0

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

-4x=16

x=16/-4

x=-4

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