-45=5(1+r)

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Solution for -45=5(1+r) equation: 



-45=5(1+r)

We move all terms to the left:

-45-(5(1+r))=0

We add all the numbers together, and all the variables

-(5(r+1))-45=0



We calculate terms in parentheses: -(5(r+1)), so:

5(r+1)

We multiply parentheses

5r+5

Back to the equation:

-(5r+5)



We get rid of parentheses

-5r-5-45=0

We add all the numbers together, and all the variables

-5r-50=0

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

-5r=50

r=50/-5

r=-10

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