37=1+3(3-3r)

Solution for 37=1+3(3-3r) equation:

37=1+3(3-3r)

We move all terms to the left:

37-(1+3(3-3r))=0

We add all the numbers together, and all the variables

-(1+3(-3r+3))+37=0


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

1+3(-3r+3)

determiningTheFunctionDomain
3(-3r+3)+1

We multiply parentheses

-9r+9+1

We add all the numbers together, and all the variables

-9r+10

Back to the equation:

-(-9r+10)


We get rid of parentheses

9r-10+37=0

We add all the numbers together, and all the variables

9r+27=0

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

9r=-27

r=-27/9

r=-3