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好吧问答库 > 解方程．6×2.5+0.8x=

解方程．6×2.5+0.8x=

解方程．6×2.5+0.8x=192.1x-0.8x=15.67.2x÷36=20．

2025年04月07日 07:15

有1个网友回答

网友（1）：

①6×2.5+0.8x=19，
    15+0.8x=19，
       0.8x=19-15，
          x=5；

②2.1x-0.8x=15.6，
     1.3x=15.6，
        x=12；

③7.2x÷36=20，
     7.2x=720，
        x=100．

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