Determine all solutions to the system1w + 1x + 1y + 1z = 42w + 1x + 7y + 1z = 73w + 5x + 2y + 4z = 9
4w + 1x + 3y + 4z = 6
Given that all calculations are performed in the field <Z7, +, •>. Make sure your final solution is complete. How many solutions do you find here?