Could you tell me what the question is?
Answer:
1 ≤ n
Step-by-step explanation:
7−3n ≤ n+3
+3n +3n
7 ≤ 4n+3
-3 -3
4 ≤ 4n
divide by 4 on each side
1 ≤ n
Answer:
R n S = {20}
Step-by-step explanation:
n in sets means same elements found in the sets which are being compared
