30 - х - 15 = 15, 20 - 42 - х = 22, 7 - х + 83 = 90, 40 - 35 + х = 75, 5 - х ∙ 4 = 20, 6 - 9 ∙ х = 54, 3 - 12 : х = 4, 24 - х : 3 = 8,

排行榜

視覺風格

選項

切換範本

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