The given equation is
[tex]3(x-8)=12[/tex]First, we use the distributive property
[tex]3x-24=12[/tex]Now, we add 24 on each side
[tex]\begin{gathered} 3x-24+24=12+24 \\ 3x=36 \end{gathered}[/tex]At last, we divide the equation by 3
[tex]\begin{gathered} \frac{3x}{3}=\frac{36}{3} \\ x=12 \end{gathered}[/tex]