8=3x+x

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Solution for 8=3x+x equation: 



8=3x+x

We move all terms to the left:

8-(3x+x)=0

We add all the numbers together, and all the variables

-(+4x)+8=0

We get rid of parentheses

-4x+8=0

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

-4x=-8

x=-8/-4

x=+2

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