b. $\left\{\begin{array}{l}2 x=12 \\ x-5 y=-29\end{array}\right.$

Step 1 ：Solve the first equation for x: \(2x = 12\) => \(x = 6\)

Step 2 ：Substitute x into the second equation: \(6 - 5y = -29\) => \(y = 7\)

Step 3 ：\(\boxed{x = 6, y = 7}\)