x-4=3+8x

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Solution for x-4=3+8x equation: 



x-4=3+8x

We move all terms to the left:

x-4-(3+8x)=0

We add all the numbers together, and all the variables

x-(8x+3)-4=0

We get rid of parentheses

x-8x-3-4=0

We add all the numbers together, and all the variables

-7x-7=0

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

-7x=7

x=7/-7

x=-1

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