Solve: \[ \begin{array}{l} y=3 x-2 \\ x-y=4 \end{array} \]

Step 1 ：Given the system of equations: \(y = 3x - 2\) and \(x - y = 4\)

Step 2 ：From the first equation, we can express y in terms of x: \(y = 3x - 2\)

Step 3 ：Substitute y from the first equation into the second equation: \(x - (3x - 2) = 4\)

Step 4 ：Solve the equation for x: \(x = -1\)

Step 5 ：Substitute x = -1 into the first equation to solve for y: \(y = 3(-1) - 2 = -5\)

Step 6 ：Final Answer: The solution to the system of equations is \(\boxed{x = -1, y = -5}\)