3(4+s)=3(3s-1)-15

Solution for 3(4+s)=3(3s-1)-15 equation:

3(4+s)=3(3s-1)-15

We move all terms to the left:

3(4+s)-(3(3s-1)-15)=0

We add all the numbers together, and all the variables

3(s+4)-(3(3s-1)-15)=0

We multiply parentheses

3s-(3(3s-1)-15)+12=0


We calculate terms in parentheses: -(3(3s-1)-15), so:

3(3s-1)-15

We multiply parentheses

9s-3-15

We add all the numbers together, and all the variables

9s-18

Back to the equation:

-(9s-18)


We get rid of parentheses

3s-9s+18+12=0

We add all the numbers together, and all the variables

-6s+30=0

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

-6s=-30

s=-30/-6

s=+5