7=7-5r-r

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Solution for 7=7-5r-r equation:


7=7-5r-r

We simplify the equation to the form, which is simple to understand 
7=7-5r-r

We move all terms containing r to the left and all other terms to the right. 
+5r+1r=+7-7

We simplify left and right side of the equation. 
+6r=0

We divide both sides of the equation by 6 to get r. 
r=0

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