75.4=2(3.14+r)

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Solution for 75.4=2(3.14+r) equation: 



75.4=2(3.14+r)

We move all terms to the left:

75.4-(2(3.14+r))=0

We add all the numbers together, and all the variables

-(2(r+3.14))+75.4=0



We calculate terms in parentheses: -(2(r+3.14)), so:

2(r+3.14)

We multiply parentheses

2r+6.28

Back to the equation:

-(2r+6.28)



We get rid of parentheses

-2r-6.28+75.4=0

We add all the numbers together, and all the variables

-2r+69.12=0

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

-2r=-69.12

r=-69.12/-2

r=34+1/1.78571428571

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