18=-(2r-6)-3(3r-4)

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Solution for 18=-(2r-6)-3(3r-4) equation:


18=-(2r-6)-3(3r-4)

We simplify the equation to the form, which is simple to understand 
18=-(2r-6)-3(3r-4)

Remove unnecessary parentheses
18=-2r+6-3*(3r-4)

Reorder the terms in parentheses
18=-2r+6+(-9r+12)

Remove unnecessary parentheses
+18=-2r+6-9r+12

We move all terms containing r to the left and all other terms to the right. 
+2r+9r=+6+12-18

We simplify left and right side of the equation. 
+11r=0

We divide both sides of the equation by 11 to get r. 
r=0

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