Question

X + y + z = -6 -2x – 2y – 2z = 12 5x + 5y + 5z = -30 find x y and z please

Answer 1

x = s, y = t, z = -6 -s -t

Explanation:

These are dependent equations. For some values s and t, the solution is ...

x = s, y = t, z = -6 -s -t