Answer:
7z
Step-by-step explanation:
4z -1(-3z)
so from that we see that -1 will cancel the negative in -3z
4z + 3z
7z
GREAT QUESTION!!! YAY! U got it now! =)
Answer:
13 -n
Step-by-step explanation:
Decreased means subtract
Let n equal the number
13 -n
Answer:
13-n
Step-by-step explanation: