Question

Solve the following system of equations.

x + 3y + 2z = –16
2x – y + 2z = –15
2x – 2y – z = 1

Answer 1

(4, 4, –1)
(–3, –1, –5)
(–3, 5, –2)
(2, –4, –3)

Answer 2

Just test the points and see which ones are true.