4=r/2+3

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Solution for 4=r/2+3 equation: 



4=r/2+3

We move all terms to the left:

4-(r/2+3)=0

We get rid of parentheses

-r/2-3+4=0

We multiply all the terms by the denominator


-r-3*2+4*2=0

We add all the numbers together, and all the variables

-1r+2=0

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

-r=-2

r=-2/-1

r=+2

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