6210.00=3900.00(1+0.5r)

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Solution for 6210.00=3900.00(1+0.5r) equation: 



6210.00=3900.00(1+0.5r)

We move all terms to the left:

6210.00-(3900.00(1+0.5r))=0

We add all the numbers together, and all the variables

-(3900.00(0.5r+1))+6210.00=0

We add all the numbers together, and all the variables

-(3900.00(0.5r+1))+6210=0



We calculate terms in parentheses: -(3900.00(0.5r+1)), so:

3900.00(0.5r+1)

We multiply parentheses

0r+3900

We add all the numbers together, and all the variables

r+3900

Back to the equation:

-(r+3900)



We get rid of parentheses

-r-3900+6210=0

We add all the numbers together, and all the variables

-1r+2310=0

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

-r=-2310

r=-2310/-1

r=+2310

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