Question Number 226524 by wongb1506 last updated on 02/Dec/25
Answered by som(math1967) last updated on 02/Dec/25
$$\:\alpha=\mathrm{3}{x}\:\:\beta=\mathrm{2}{x} \\ $$$$\mathrm{5}{x}=\mathrm{90}\Rightarrow{x}=\mathrm{18}=\alpha−\beta \\ $$$$\:\:\left({D}\right) \\ $$