11=3r+8r

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Solution for 11=3r+8r equation: 



11=3r+8r

We move all terms to the left:

11-(3r+8r)=0

We add all the numbers together, and all the variables

-(+11r)+11=0

We get rid of parentheses

-11r+11=0

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

-11r=-11

r=-11/-11

r=1

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