What is the solution to the system of equations? {6x−2y=−144x−3y=−31 What is the solution to the system of equations? 3x−y−z=82x+y−z=3x−y+z=6 What is the solution to the system of equations?⎨−2x−y−3z=−13x−2y−z=−132x +4y−z=−4