How should I express one $\mathrm{log}$ in terms of others?

Can someone please help me with this logarithmic question? I know it’s easy, but I need to refresh my memory on how to do it.

If $X=\mathrm{log}2$ and $Y=\mathrm{log}3$, express $\mathrm{log}0.6$ in terms of $X$ and $Y$ (assume all logs have a base of 10).

Can someone please help me with this logarithmic question? I know it’s easy, but I need to refresh my memory on how to do it.

If $X=\mathrm{log}2$ and $Y=\mathrm{log}3$, express $\mathrm{log}0.6$ in terms of $X$ and $Y$ (assume all logs have a base of 10).