解方程:(1)(1—2x)/3=(3x+1)/7—3;(2)(0.4x—9/0.5)—(x—5/2)=(0.03+0.02x)/0.033.已知x=1/2是方程(2x—m)/4—(1/2)=(x—m)/3的解,求代数式1/4(-4m+2m—8)—(1/2m—1)的值 (为了
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![解方程:(1)(1—2x)/3=(3x+1)/7—3;(2)(0.4x—9/0.5)—(x—5/2)=(0.03+0.02x)/0.033.已知x=1/2是方程(2x—m)/4—(1/2)=(x—m)/3的解,求代数式1/4(-4m+2m—8)—(1/2m—1)的值 (为了](/uploads/image/z/4337065-1-5.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%9A%EF%BC%881%EF%BC%89%EF%BC%881%E2%80%942x%EF%BC%89%2F3%3D%EF%BC%883x%2B1%EF%BC%89%2F7%E2%80%943%EF%BC%9B%EF%BC%882%EF%BC%89%EF%BC%880.4x%E2%80%949%2F0.5%EF%BC%89%E2%80%94%EF%BC%88x%E2%80%945%2F2%EF%BC%89%3D%EF%BC%880.03%2B0.02x%EF%BC%89%2F0.033.%E5%B7%B2%E7%9F%A5x%3D1%2F2%E6%98%AF%E6%96%B9%E7%A8%8B%EF%BC%882x%E2%80%94m%EF%BC%89%2F4%E2%80%94%EF%BC%881%2F2%EF%BC%89%3D%EF%BC%88x%E2%80%94m%EF%BC%89%2F3%E7%9A%84%E8%A7%A3%2C%E6%B1%82%E4%BB%A3%E6%95%B0%E5%BC%8F1%2F4%EF%BC%88-4m%2B2m%E2%80%948%EF%BC%89%E2%80%94%EF%BC%881%2F2m%E2%80%941%EF%BC%89%E7%9A%84%E5%80%BC+%EF%BC%88%E4%B8%BA%E4%BA%86)
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