21-2s=5

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Solution for 21-2s=5 equation:


21-2s=5

We simplify the equation to the form, which is simple to understand 
21-2s=5

We move all terms containing s to the left and all other terms to the right. 
-2s=+5-21

We simplify left and right side of the equation. 
-2s=-16

We divide both sides of the equation by -2 to get s. 
s=8

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