21-2x=8x

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Solution for 21-2x=8x equation: 



21-2x=8x

We move all terms to the left:

21-2x-(8x)=0

We add all the numbers together, and all the variables

-10x+21=0

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

-10x=-21

x=-21/-10

x=2+1/10

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