-18-5r=12-2r

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Solution for -18-5r=12-2r equation: 



-18-5r=12-2r

We move all terms to the left:

-18-5r-(12-2r)=0

We add all the numbers together, and all the variables

-5r-(-2r+12)-18=0

We get rid of parentheses

-5r+2r-12-18=0

We add all the numbers together, and all the variables

-3r-30=0

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

-3r=30

r=30/-3

r=-10

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