4(r)=3.14^2

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Solution for 4(r)=3.14^2 equation: 



4(r)=3.14^2

We move all terms to the left:

4(r)-(3.14^2)=0

We add all the numbers together, and all the variables

4r-9.8596=0

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

4r=9.8596

r=9.8596/4

r=2+1/2.1510002151

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