Solution of equations x + y = 8 and 3x - 5y = 0 is :

1. x = 5, y = -3

2. x = 5, y = 3

3. x = -5, y = 3

4. x = -5, y = -3

Solution of equations 11x - 7y = 29 and 7x - 11y = 25 is :

1. x = 2, y = 1

2. x = 2, y = -1

3. x = -2, y = 1

4. x = -2, y = -1