49=2+r

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Solution for 49=2+r equation: 



49=2+r

We move all terms to the left:

49-(2+r)=0

We add all the numbers together, and all the variables

-(r+2)+49=0

We get rid of parentheses

-r-2+49=0

We add all the numbers together, and all the variables

-1r+47=0

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

-r=-47

r=-47/-1

r=+47

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