help po pede po ung with solution po

Answer:
1. (5,2), (-5,-5), (4,0)
2. (1,10), (3,3)
3. (1,2), (0,4), (2,2)
4. (0,5), (-1,-6)
5. (0,6), (2,2)
Step-by-step explanation:
use substitution
hope it helps