21-2x=-8

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Solution for 21-2x=-8 equation: 



21-2x=-8

We move all terms to the left:

21-2x-(-8)=0

We add all the numbers together, and all the variables

-2x+29=0

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

-2x=-29

x=-29/-2

x=14+1/2

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