-3r+18+5r=-12

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Solution for -3r+18+5r=-12 equation: 



-3r+18+5r=-12

We move all terms to the left:

-3r+18+5r-(-12)=0

We add all the numbers together, and all the variables

2r+30=0

We move all terms containing r to the left, all other terms to the right

2r=-30

r=-30/2

r=-15

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