Question

What is the answer to the system?​

Answer 1

`\begin{cases}x + y = 40 \\ (x)/(20) + (y)/(4) = 6\end{cases} \\ \Leftrightarrow \begin{cases} x + y = 40\\x + 5y = 120 \end{cases} \\ \Leftrightarrow \begin{cases} x + y = 40\\ 4y = 80\end{cases} \\ \Leftrightarrow \begin{cases}x = 20 \\ y = 20\end{cases}`