14.28=2*3.14*r/4+2r

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Solution for 14.28=2*3.14*r/4+2r equation: 



14.28=2*3.14r/4+2r

We move all terms to the left:

14.28-(2*3.14r/4+2r)=0



Domain of the equation: 4+2r)!=0

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

2r)!=-4

r!=-4/1

r!=-4

r∈R



We add all the numbers together, and all the variables

-(+2r+2*3.14r/4)+14.28=0

We get rid of parentheses

-2r-2*3.14r/4+14.28=0

We multiply all the terms by the denominator


-2r*4-2*3.14r+(14.28)*4=0

We add all the numbers together, and all the variables

-2r*4-2*3.14r+57.12=0

Wy multiply elements

-8r-6r+57.12=0

We add all the numbers together, and all the variables

-14r+57.12=0

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

-14r=-57.12

r=-57.12/-14

r=4+1/12.5

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