9=2r+5r

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Solution for 9=2r+5r equation:


9=2r+5r

We simplify the equation to the form, which is simple to understand 
9=2r+5r

We move all terms containing r to the left and all other terms to the right. 
-2r-5r=-9

We simplify left and right side of the equation. 
-7r=-9

We divide both sides of the equation by -7 to get r. 
r=1.2857142857143

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