47=r/4+42

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Solution for 47=r/4+42 equation: 



47=r/4+42

We move all terms to the left:

47-(r/4+42)=0

We get rid of parentheses

-r/4-42+47=0

We multiply all the terms by the denominator


-r-42*4+47*4=0

We add all the numbers together, and all the variables

-1r+20=0

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

-r=-20

r=-20/-1

r=+20

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