Question 7
In the figure below, each distinct letter represents a unique digit such that the arithmetic sum holds. If the letter L represents 9, what is the digit represented by the letter T?
$$\begin{array}{rrrrrrrr}T&E&R&R&I&B&L&E\\+&&N&U&M&B&E&R\\\hline T&H&I&R&T&E&E&N\end{array}$$
$$\begin{array}{rrrrrrrr}T&E&R&R&I&B&L&E\\+&&N&U&M&B&E&R\\\hline T&H&I&R&T&E&E&N\end{array}$$