x=126+7x

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Solution for x=126+7x equation: 



x=126+7x

We move all terms to the left:

x-(126+7x)=0

We add all the numbers together, and all the variables

x-(7x+126)=0

We get rid of parentheses

x-7x-126=0

We add all the numbers together, and all the variables

-6x-126=0

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

-6x=126

x=126/-6

x=-21

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