Answer:
11n
Step-by-step explanation:
The expression is 7n + 4n. Since 7n and 4n are like terms (they both are variables with n), we can combine them so the expression becomes 7n + 4n = 11n.
Answer:
Step-by-step explanation:
Answer:
x is x
Step-by-step explanation:
of course i ont know thisd
Answer:
........
Step-by-step explanation:
the answer should be 8