-2-r+9r=

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Solution for -2-r+9r= equation:


-2-r+9r=0

We simplify the equation to the form, which is simple to understand 
-2-r+9r=0

We move all terms containing r to the left and all other terms to the right. 
-1r+9r=0+2

We simplify left and right side of the equation. 
+8r=+2

We divide both sides of the equation by 8 to get r. 
r=0.25

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