Given:
[tex]2m-12=18[/tex]Solve the equation by systematic method,
[tex]\begin{gathered} 2m-12=18 \\ \text{Add 12 on both sides} \\ 2m-12+12=18+12 \\ 2m=30 \\ \text{Divide both sides by 2} \\ \frac{2m}{2}=\frac{30}{2} \\ m=15 \end{gathered}[/tex]Answer: m = 15