1. 2x + y = 9
2. x + 2y = 4
3. 3x - y = 2
Yong number 1,2,3 lang po sana

Answer:
[tex]1.2x + y - 9 = 0[/tex]
[tex]2.x + 2y - 4 = 0[/tex]
[tex]3.3x - y - 2 = 0[/tex]