Question

Solve the system of equations: 2x+3y+10z=4. 4x−6y+5z=1. 6x+9y−20z=2.

Answer 1

Objective: Solve systems of equations with three variables using addi- ... −1. −2x −2y +3z =5 ... 6x+2y −z =−16 We could choose any variable,so we chosex ... 3(4x −3y +2z)=(−29) 3.