Answer:
s = -3.39
Explanation:
First, we need to apply distributive property on the right side as:
[tex]\begin{gathered} 8s-(5s+6)=12(20+6s) \\ 8s-(5s+6)=(12\cdot20)+(12\cdot6s) \\ 8s-(5s+6)=240+72s \end{gathered}[/tex]Then, adding like terms, we get:
[tex]\begin{gathered} 8s-5s+6=240e+72s \\ 3s+6=240+72s \end{gathered}[/tex]Subtracting 3s from both sides:
[tex]\begin{gathered} 3s+6-3s=240+72s-3s \\ 6=240+69s \end{gathered}[/tex]Subtracting 240 from both sides:
[tex]\begin{gathered} 6-240=69s \\ -234=69s \end{gathered}[/tex]Finally, dividing by 69, we get:
[tex]\begin{gathered} -\frac{234}{69}=\frac{69s}{69} \\ -3.39=s \end{gathered}[/tex]Therefore, the answer is s = -3.39