4+2x+8=3x-9+x

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Solution for 4+2x+8=3x-9+x equation: 



4+2x+8=3x-9+x

We move all terms to the left:

4+2x+8-(3x-9+x)=0

We add all the numbers together, and all the variables

2x-(4x-9)+4+8=0

We add all the numbers together, and all the variables

2x-(4x-9)+12=0

We get rid of parentheses

2x-4x+9+12=0

We add all the numbers together, and all the variables

-2x+21=0

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

-2x=-21

x=-21/-2

x=10+1/2

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