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兩邊乘6 x-1-3(3x-1)≤12-3x x-1-9x+3≤12-3x -8x+2≤12-3x 8x-3x≥-10 x≥-2 請好評 ~在右上角點擊【評估】,然後就可以選擇【滿意,問題已經完美解决】了. 如果你認可我的回答,敬請及時採納, ~你的採納是我前進的動力~~
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