3r-9=-18

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Solution for 3r-9=-18 equation:


3r-9=-18

We simplify the equation to the form, which is simple to understand 
3r-9=-18

We move all terms containing r to the left and all other terms to the right. 
+3r=-18+9

We simplify left and right side of the equation. 
+3r=-9

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

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