3=4/r-2

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Solution for 3=4/r-2 equation: 



3=4/r-2

We move all terms to the left:

3-(4/r-2)=0



Domain of the equation: r-2)!=0

r∈R



We get rid of parentheses

-4/r+2+3=0

We multiply all the terms by the denominator


2*r+3*r-4=0

We add all the numbers together, and all the variables

5r-4=0

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

5r=4

r=4/5

r=4/5

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