1/4r=-90

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Solution for 1/4r=-90 equation:


1/4r=-90

We simplify the equation to the form, which is simple to understand 
1/4r=-90

We move all terms containing r to the left and all other terms to the right. 
+4r=-90

We simplify left and right side of the equation. 
+4r=-90

We divide both sides of the equation by 4 to get r. 
r=-22.5

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