-1=-3(s-19)+-19

Solution for -1=-3(s-19)+-19 equation:

-1=-3(s-19)+-19

We move all terms to the left:

-1-(-3(s-19)+-19)=0

We use the square of the difference formula

-(-3(s-19)-19)-1=0


We calculate terms in parentheses: -(-3(s-19)-19), so:

-3(s-19)-19

We multiply parentheses

-3s+57-19

We add all the numbers together, and all the variables

-3s+38

Back to the equation:

-(-3s+38)


We get rid of parentheses

3s-38-1=0

We add all the numbers together, and all the variables

3s-39=0

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

3s=39

s=39/3

s=13