48分之7X-(12分之1X+9)=15 还有4X+3(X+9)=97越快越好
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![48分之7X-(12分之1X+9)=15 还有4X+3(X+9)=97越快越好](/uploads/image/z/3770219-11-9.jpg?t=48%E5%88%86%E4%B9%8B7X-%EF%BC%8812%E5%88%86%E4%B9%8B1X%2B9%EF%BC%89%3D15+%E8%BF%98%E6%9C%894X%2B3%EF%BC%88X%2B9%EF%BC%89%3D97%E8%B6%8A%E5%BF%AB%E8%B6%8A%E5%A5%BD)
48分之7X-(12分之1X+9)=15 还有4X+3(X+9)=97越快越好
48分之7X-(12分之1X+9)=15 还有4X+3(X+9)=97
越快越好
48分之7X-(12分之1X+9)=15 还有4X+3(X+9)=97越快越好
48分之7X-(12分之1X+9)=15
7/48x-1/12x-9=15
1/16x=24
x=384
4X+3(X+9)=97
4x+3x+27=97
7x=70
x=10
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