1、若方程4x-1+a=0的解大于-2,则a_____.2、a为何数时,方程组ax+4y=8,3x+2y=6的解是正数?解题过程、思路麻烦讲清楚,
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![1、若方程4x-1+a=0的解大于-2,则a_____.2、a为何数时,方程组ax+4y=8,3x+2y=6的解是正数?解题过程、思路麻烦讲清楚,](/uploads/image/z/2641185-9-5.jpg?t=1%E3%80%81%E8%8B%A5%E6%96%B9%E7%A8%8B4x-1%2Ba%3D0%E7%9A%84%E8%A7%A3%E5%A4%A7%E4%BA%8E-2%2C%E5%88%99a_____.2%E3%80%81a%E4%B8%BA%E4%BD%95%E6%95%B0%E6%97%B6%2C%E6%96%B9%E7%A8%8B%E7%BB%84ax%2B4y%3D8%2C3x%2B2y%3D6%E7%9A%84%E8%A7%A3%E6%98%AF%E6%AD%A3%E6%95%B0%3F%E8%A7%A3%E9%A2%98%E8%BF%87%E7%A8%8B%E3%80%81%E6%80%9D%E8%B7%AF%E9%BA%BB%E7%83%A6%E8%AE%B2%E6%B8%85%E6%A5%9A%2C)
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