4(9+3r)-12=-6

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Solution for 4(9+3r)-12=-6 equation:


4(9+3r)-12=-6

We simplify the equation to the form, which is simple to understand 
4(9+3r)-12=-6

Reorder the terms in parentheses
+(+36+12r)-12=-6

Remove unnecessary parentheses
+36+12r-12=-6

We move all terms containing r to the left and all other terms to the right. 
+12r=-6-36+12

We simplify left and right side of the equation. 
+12r=-30

We divide both sides of the equation by 12 to get r. 
r=-2.5

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