5(4r+36)=16(5r-45)

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Solution for 5(4r+36)=16(5r-45) equation: 



5(4r+36)=16(5r-45)

We move all terms to the left:

5(4r+36)-(16(5r-45))=0

We multiply parentheses

20r-(16(5r-45))+180=0



We calculate terms in parentheses: -(16(5r-45)), so:

16(5r-45)

We multiply parentheses

80r-720

Back to the equation:

-(80r-720)



We get rid of parentheses

20r-80r+720+180=0

We add all the numbers together, and all the variables

-60r+900=0

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

-60r=-900

r=-900/-60

r=+15

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