18r-(-7r)-2r-11r-4r=8

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Solution for 18r-(-7r)-2r-11r-4r=8 equation: 



18r-(-7r)-2r-11r-4r=8

We move all terms to the left:

18r-(-7r)-2r-11r-4r-(8)=0

We add all the numbers together, and all the variables

r-(-7r)-8=0

We get rid of parentheses

r+7r-8=0

We add all the numbers together, and all the variables

8r-8=0

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

8r=8

r=8/8

r=1

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