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您好:3分之4x+12分之5=3乘12分之74/3x+5/12=21/124/3x=21/12-5/124/3x=4/3x=1 ~如果你認可我的回答,請及時點擊【採納為滿意回答】按鈕~~手機提問者在用戶端右上角評估點【滿意】即可.~你的採納是我前進的動力~~~…
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