-7r-8r=15

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Solution for -7r-8r=15 equation:


-7r-8r=15

We simplify the equation to the form, which is simple to understand 
-7r-8r=15

We move all terms containing r to the left and all other terms to the right. 
-7r-8r=+15

We simplify left and right side of the equation. 
-15r=+15

We divide both sides of the equation by -15 to get r. 
r=-1

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