중2(상) 연립방정식의 활용 part1 : 이보다 더 자세할 순 없다!! 시험 완벽 대비!!

Hello, everyone!!! Today, I've prepared a lecture on solving problems by type on the "Application of Simultaneous Equations" section, which many of you are struggling with in preparation for your final exams. Don't struggle with the application section any longer, and let's all aim for a perfect score! [Table of Contents, Answers] 00:00 Intro 01:11 #1 (Correct Answer: 63) 04:25 #2 (Correct Answer: 5 adults, 5 children) 07:23 #3 (Correct Answer: 15) 09:56 #4 (Correct Answer: 18) 11:57 #5 (Correct Answer: 46 years old) 14:13 #6 (Father: 38 years old, Son: 8 years old / Correct Answer: 46 years old) 16:30 #7 (Correct Answer: 12) 18:19 #8 (Correct Answer: 74 points) 19:43 #9 (Correct Answer: 12) 20:56 #10 (Correct Answer: 10,500 won) 23:02 #11 (Correct Answer: 40 people) 25:55 No. 12 (Answer: A-14 times, B-13 times) 28:37 No. 13 (Answer: 8cm) [Subscribe to Teacher Jjenny]    / @쪄니쌤의수학교실   The problems in this lecture are based on [Zaistory] by Soo Kyung Publishing. #MiddleSchoolMath #FinalExam #UsingSimultaneousEquations