[tex]\begin{gathered} 3x-8=20 \\ \text{Solve for x:} \\ \text{Add 8 to both sides:} \\ 3x-8+8=20+8 \\ 3x=28 \\ \text{Divide both sides by 3:} \\ \frac{3x}{3}=\frac{28}{3} \\ \\ x=\frac{28}{3}\approx9.333 \end{gathered}[/tex]
[tex]\frac{28}{3}=9\cdot\frac{1}{3}[/tex]
