1. 5x + 2y = 9
2. 3y > 2x + 8
3. x-3y 5-8
4. y = 9x + 2
5. 3x - 14 2y
6. x + y = 253
7. 504 <2x-3y
8, 5x-2y = 9
9.35y <45x
10.2x + 5y-4=0​