r-7r-30=0

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Solution for r-7r-30=0 equation:


r-7r-30=0

We simplify the equation to the form, which is simple to understand 
r-7r-30=0

We move all terms containing r to the left and all other terms to the right. 
+1r-7r=0+30

We simplify left and right side of the equation. 
-6r=+30

We divide both sides of the equation by -6 to get r. 
r=-5

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