33=2r-3(9-r)

Solution for 33=2r-3(9-r) equation:

33=2r-3(9-r)

We move all terms to the left:

33-(2r-3(9-r))=0

We add all the numbers together, and all the variables

-(2r-3(-1r+9))+33=0


We calculate terms in parentheses: -(2r-3(-1r+9)), so:

2r-3(-1r+9)

We multiply parentheses

2r+3r-27

We add all the numbers together, and all the variables

5r-27

Back to the equation:

-(5r-27)


We get rid of parentheses

-5r+27+33=0

We add all the numbers together, and all the variables

-5r+60=0

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

-5r=-60

r=-60/-5

r=+12