42=r/7

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Solution for 42=r/7 equation: 



42=r/7

We move all terms to the left:

42-(r/7)=0

We add all the numbers together, and all the variables

-(+r/7)+42=0

We get rid of parentheses

-r/7+42=0

We multiply all the terms by the denominator


-r+42*7=0

We add all the numbers together, and all the variables

-1r+294=0

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

-r=-294

r=-294/-1

r=+294

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