This section contains the answers to the linear equations question in section 3.6.2.

**1.**
x_{1} = 2, x_{2} = 1

**2.**
x_{1} = 0.4, x_{2} = 2

**3.**
x_{1} = -0.5, x_{2} = 5

**4.**
x_{1} = 2, x_{2} = 1

**5.**
x_{1} = -0.15, x_{2} = 310.6

**6.**
x_{1} = 5, x_{2} = -3, x_{3} = 2

**7.**
x_{1} = -3.27, x_{2} = 14.25, x_{3} = 17.52,
x_{4} = -18.50, x_{5} = -1.95