Question 74
The real numbers $x, y, z, w$ satisfy
$$
\begin{aligned}
2x + y + z + w &= 1 \\
x + 3y + z + w &= 2 \\
x + y + 4z + w &= 3 \\
x + y + z + 5w &= 25.
\end{aligned}
$$
Find the value of $w$.
$$
\begin{aligned}
2x + y + z + w &= 1 \\
x + 3y + z + w &= 2 \\
x + y + 4z + w &= 3 \\
x + y + z + 5w &= 25.
\end{aligned}
$$
Find the value of $w$.