-3r=12

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Solution for -3r=12 equation:


-3r=12

We simplify the equation to the form, which is simple to understand 
-3r=12

We move all terms containing r to the left and all other terms to the right. 
-3r=+12

We simplify left and right side of the equation. 
-3r=+12

We divide both sides of the equation by -3 to get r. 
r=-4

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