Answers fast 1.) solve. {3x+y=42x+y=5 use the linear combination method. a.) (−3, 13) b.(0, 4) c.) (−3, 12) −1, 7) 2.) solve. {3d−e=7d+e=5 use the linear combination method. a.) the solution is (2, −1). b.)there are infinitely many solutions. c.)the solution is (3, 2). d.)there is no solution. 3.) what is the solution of the system? {2x+y=15x−y=3 4.) what is the solution of the system of equations? {13x−6y=23x−4y=−10 5.) what is the solution of the system of equations? {72x−12y=923x−y=5