A=3.14r/2

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Solution for A=3.14r/2 equation: 



=3.14A/2

We move all terms to the left:

-(3.14A/2)=0

We add all the numbers together, and all the variables

-(+3.14A/2)=0

We get rid of parentheses

-3.14A/2=0

We multiply all the terms by the denominator


-3.14A=0

A=0/-3.14

A=0

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