Answer:
4) 7a + 11b
5) i'm not sure
6) 3 (n = 3)
7) i can't see the last ones, but i know that y = 6
i hope this helps
sorry i can't help more :(
Have a great day!
1. 7a-b
2. 6x+50
3. 1
4. y=6
Step-by-step explanation:
just simplify.
