109=-5(r-8)-(r+3)

Solution for 109=-5(r-8)-(r+3) equation:

109=-5(r-8)-(r+3)

We move all terms to the left:

109-(-5(r-8)-(r+3))=0


We calculate terms in parentheses: -(-5(r-8)-(r+3)), so:

-5(r-8)-(r+3)

We multiply parentheses

-5r-(r+3)+40

We get rid of parentheses

-5r-r-3+40

We add all the numbers together, and all the variables

-6r+37

Back to the equation:

-(-6r+37)


We get rid of parentheses

6r-37+109=0

We add all the numbers together, and all the variables

6r+72=0

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

6r=-72

r=-72/6

r=-12