Solve the System of Equations

Multiple Choice

Solve the system of equations. 2x - 3y + z = 4
8x - 12y + 4z = 16
-4x + 6y - 2z = -8

A) {(-3, 6, 7) }
B) {(-4, -2, -1) }
C) {}
D) {(x, y, z) | 2x - 3y + z = 4}