x+8+4=2x

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Solution for x+8+4=2x equation: 



x+8+4=2x

We move all terms to the left:

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

We add all the numbers together, and all the variables

-1x+12=0

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

-x=-12

x=-12/-1

x=+12

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