11=7+2r

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Solution for 11=7+2r equation: 



11=7+2r

We move all terms to the left:

11-(7+2r)=0

We add all the numbers together, and all the variables

-(2r+7)+11=0

We get rid of parentheses

-2r-7+11=0

We add all the numbers together, and all the variables

-2r+4=0

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

-2r=-4

r=-4/-2

r=+2

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