21+r=1/2

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Solution for 21+r=1/2 equation:


21+r=1/2

We simplify the equation to the form, which is simple to understand 
21+r=1/2

Simplifying:
21+r=0.5

We move all terms containing r to the left and all other terms to the right. 
+1r=0.5-21

We simplify left and right side of the equation. 
+1r=-20.5

We divide both sides of the equation by 1 to get r. 
r=-20.5

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