-3(5+r)=9

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Solution for -3(5+r)=9 equation:


-3 (5+r)=9

We simplify the equation to the form, which is simple to understand 
-3(5+r)=9

Reorder the terms in parentheses
+(-15-3r)=9

Remove unnecessary parentheses
-15-3r=+9

We move all terms containing r to the left and all other terms to the right. 
-3r=+9+15

We simplify left and right side of the equation. 
-3r=+24

We divide both sides of the equation by -3 to get r. 
r=-8

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