Respuesta :
Answer:
12-y < x < y-6
Step-by-step explanation:
y > l x-3 l +9
y-9 > l x-3 l
- ( y-9 ) < x-3 < y-9
9-y+3 < x < y-9+3
=> 12-y < x < y-6
Answer:
12-y < x < y-6
Step-by-step explanation:
y > l x-3 l +9
y-9 > l x-3 l
- ( y-9 ) < x-3 < y-9
9-y+3 < x < y-9+3
=> 12-y < x < y-6