Solve the system: 2x + y = -5 and 2x – y = -15.
Note
The ordered pair must satisfy both equations. Substituting x = -5, y = 5: first equation gives -5 = -5, and second gives -15 = -15. Therefore the solution is (-5, 5).
Solve the system: 2x + y = -5 and 2x – y = -15.
The ordered pair must satisfy both equations. Substituting x = -5, y = 5: first equation gives -5 = -5, and second gives -15 = -15. Therefore the solution is (-5, 5).