3900.00=3900.00(1+0.75r)

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Solution for 3900.00=3900.00(1+0.75r) equation: 



3900.00=3900.00(1+0.75r)

We move all terms to the left:

3900.00-(3900.00(1+0.75r))=0

We add all the numbers together, and all the variables

-(3900.00(0.75r+1))+3900.00=0

We add all the numbers together, and all the variables

-(3900.00(0.75r+1))+3900=0



We calculate terms in parentheses: -(3900.00(0.75r+1)), so:

3900.00(0.75r+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+3900=0

We add all the numbers together, and all the variables

-r=0

r=0/-1

r=0

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