r-4/5=-21/4

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Solution for r-4/5=-21/4 equation:


r-4/5=-21/4

We simplify the equation to the form, which is simple to understand 
r-4/5=-21/4

Simplifying:
r-0.8=-21/4

Simplifying:
r-0.8=-5.25

We move all terms containing r to the left and all other terms to the right. 
+1r=-5.25 + 0.8

We simplify left and right side of the equation. 
+1r=-4.45

We divide both sides of the equation by 1 to get r. 
r=-4.45

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