\begin{align} &\cssId{Step1}{Γ = {P_{mec}\over{w_{mot}}}}\\[3px] &\cssId{Step2}{Γ = {P_{mec}\over{n·{2π\over{60}}}}}\\[3px] &\cssId{Step3}{Γ = {20000\over{3000·{2π\over{60}}}} = 63,662Nm}\\[3px] \end{align}