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七年级数学：已知4x+y=3，且y≤4，怎么求x的取值范围？基础考题
七年级数学：已知4x+y=3，且y≤4，怎么求x的取值范围？
一元一次不等式（组），不等式应用题，中考数学，培优考题21/209
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