33=13r-3(9-r)

Solution for 33=13r-3(9-r) equation:

33=13r-3(9-r)

We move all terms to the left:

33-(13r-3(9-r))=0

We add all the numbers together, and all the variables

-(13r-3(-1r+9))+33=0


We calculate terms in parentheses: -(13r-3(-1r+9)), so:

13r-3(-1r+9)

We multiply parentheses

13r+3r-27

We add all the numbers together, and all the variables

16r-27

Back to the equation:

-(16r-27)


We get rid of parentheses

-16r+27+33=0

We add all the numbers together, and all the variables

-16r+60=0

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

-16r=-60

r=-60/-16

r=3+3/4