Mathematics
Senior High
Resolved
自分の答え(手書き)はなぜ間違っていますか？
(1) |3x|≥9
95 (1) 3x ≤ -9,
9≤3x
x-3, 3≤ x
よって
(2)
55x+4<5
9
7₤3
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あ！なるほどありがとうございます