1.二元一次方程组:5.5x÷(y-x)=4 4.5x÷【(y+5)-x】=32.把一袋糖分给小朋友们,每人12粒,正好分完;如果每人分16粒,就有2个小朋友分不到糖.这袋糖共有()粒3.有n个自然数相加:1+2+3+……+n=
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![1.二元一次方程组:5.5x÷(y-x)=4 4.5x÷【(y+5)-x】=32.把一袋糖分给小朋友们,每人12粒,正好分完;如果每人分16粒,就有2个小朋友分不到糖.这袋糖共有()粒3.有n个自然数相加:1+2+3+……+n=](/uploads/image/z/1261792-64-2.jpg?t=1.%E4%BA%8C%E5%85%83%E4%B8%80%E6%AC%A1%E6%96%B9%E7%A8%8B%E7%BB%84%EF%BC%9A5.5x%C3%B7%EF%BC%88y-x%EF%BC%89%3D4+4.5x%C3%B7%E3%80%90%EF%BC%88y%2B5%EF%BC%89-x%E3%80%91%3D32.%E6%8A%8A%E4%B8%80%E8%A2%8B%E7%B3%96%E5%88%86%E7%BB%99%E5%B0%8F%E6%9C%8B%E5%8F%8B%E4%BB%AC%2C%E6%AF%8F%E4%BA%BA12%E7%B2%92%2C%E6%AD%A3%E5%A5%BD%E5%88%86%E5%AE%8C%EF%BC%9B%E5%A6%82%E6%9E%9C%E6%AF%8F%E4%BA%BA%E5%88%8616%E7%B2%92%2C%E5%B0%B1%E6%9C%892%E4%B8%AA%E5%B0%8F%E6%9C%8B%E5%8F%8B%E5%88%86%E4%B8%8D%E5%88%B0%E7%B3%96.%E8%BF%99%E8%A2%8B%E7%B3%96%E5%85%B1%E6%9C%89%EF%BC%88%EF%BC%89%E7%B2%923.%E6%9C%89n%E4%B8%AA%E8%87%AA%E7%84%B6%E6%95%B0%E7%9B%B8%E5%8A%A0%EF%BC%9A1%2B2%2B3%2B%E2%80%A6%E2%80%A6%2Bn%3D)
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