21-2xx=2

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Solution for 21-2xx=2 equation: 



21-2xx=2

We move all terms to the left:

21-2xx-(2)=0

We add all the numbers together, and all the variables

-2xx+19=0

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

-2xx=-19

x=-19/1

x=-19

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