[問題] 一題數甲三元一次方程組
選項1,2,3都懂,4,5就無法理解@@
紅色字是解答寫的,可是沒說為什麼
求強者寫出算式
http://i.imgur.com/R7HPaBi.jpg
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推
06/22 20:02, , 1F
06/22 20:02, 1F
推
06/22 20:18, , 2F
06/22 20:18, 2F
推
06/22 21:14, , 3F
06/22 21:14, 3F
→
06/22 21:14, , 4F
06/22 21:14, 4F
→
06/22 21:14, , 5F
06/22 21:14, 5F
→
06/22 21:14, , 6F
06/22 21:14, 6F
→
06/22 21:15, , 7F
06/22 21:15, 7F
→
06/22 21:15, , 8F
06/22 21:15, 8F
→
06/22 21:15, , 9F
06/22 21:15, 9F
→
06/22 21:15, , 10F
06/22 21:15, 10F
→
06/22 21:15, , 11F
06/22 21:15, 11F
推
06/22 21:43, , 12F
06/22 21:43, 12F
→
06/22 21:43, , 13F
06/22 21:43, 13F
→
06/22 21:43, , 14F
06/22 21:43, 14F
→
06/22 21:43, , 15F
06/22 21:43, 15F
→
06/22 21:43, , 16F
06/22 21:43, 16F
→
06/22 21:44, , 17F
06/22 21:44, 17F
→
06/22 21:44, , 18F
06/22 21:44, 18F
推
06/22 22:41, , 19F
06/22 22:41, 19F
→
06/22 22:42, , 20F
06/22 22:42, 20F
→
06/22 22:46, , 21F
06/22 22:46, 21F
→
06/22 22:47, , 22F
06/22 22:47, 22F
→
06/22 23:01, , 23F
06/22 23:01, 23F
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