-18-36=18+4r

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Solution for -18-36=18+4r equation: 



-18-36=18+4r

We move all terms to the left:

-18-36-(18+4r)=0

We add all the numbers together, and all the variables

-(4r+18)-18-36=0

We add all the numbers together, and all the variables

-(4r+18)-54=0

We get rid of parentheses

-4r-18-54=0

We add all the numbers together, and all the variables

-4r-72=0

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

-4r=72

r=72/-4

r=-18

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