9.42=r*2

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Solution for 9.42=r*2 equation: 



9.42=r*2

We move all terms to the left:

9.42-(r*2)=0

We add all the numbers together, and all the variables

-(+r*2)+9.42=0

We get rid of parentheses

-r*2+9.42=0

Wy multiply elements

-2r+9.42=0

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

-2r=-9.42

r=-9.42/-2

r=4+1/1.4084507042254

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