81.64=2(3.14)(x+5)

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Solution for 81.64=2(3.14)(x+5) equation: 



81.64=2(3.14)(x+5)

We move all terms to the left:

81.64-(2(3.14)(x+5))=0

We multiply parentheses ..

-(2(+3.14x+15.7))+81.64=0



We calculate terms in parentheses: -(2(+3.14x+15.7)), so:

2(+3.14x+15.7)

We add all the numbers together, and all the variables

2(3.14x+15.7)

We multiply parentheses

6x+31.4

Back to the equation:

-(6x+31.4)



We get rid of parentheses

-6x-31.4+81.64=0

We add all the numbers together, and all the variables

-6x+50.24=0

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

-6x=-50.24

x=-50.24/-6

x=8+1/2.67857142857

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