21-2x=2

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Solution for 21-2x=2 equation: 



21-2x=2

We move all terms to the left:

21-2x-(2)=0

We add all the numbers together, and all the variables

-2x+19=0

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

-2x=-19

x=-19/-2

x=9+1/2

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