4.2=r+5.2

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Solution for 4.2=r+5.2 equation: 



4.2=r+5.2

We move all terms to the left:

4.2-(r+5.2)=0

We get rid of parentheses

-r-5.2+4.2=0

We add all the numbers together, and all the variables

-1r-1=0

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

-r=1

r=1/-1

r=-1

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