-r-15=17r+18-7r

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Solution for -r-15=17r+18-7r equation: 



-r-15=17r+18-7r

We move all terms to the left:

-r-15-(17r+18-7r)=0

We add all the numbers together, and all the variables

-r-(10r+18)-15=0

We add all the numbers together, and all the variables

-1r-(10r+18)-15=0

We get rid of parentheses

-1r-10r-18-15=0

We add all the numbers together, and all the variables

-11r-33=0

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

-11r=33

r=33/-11

r=-3

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