-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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