解比例 要有过程 需急···(x+25):2.4=16:1.2 = = 要有过程 需急···(x-3):1/2 =5:0.5 = = =也要有过程 需急···
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![解比例 要有过程 需急···(x+25):2.4=16:1.2 = = 要有过程 需急···(x-3):1/2 =5:0.5 = = =也要有过程 需急···](/uploads/image/z/1767174-6-4.jpg?t=%E8%A7%A3%E6%AF%94%E4%BE%8B+%E8%A6%81%E6%9C%89%E8%BF%87%E7%A8%8B+%E9%9C%80%E6%80%A5%C2%B7%C2%B7%C2%B7%EF%BC%88x%2B25%29%3A2.4%3D16%3A1.2++++++++++++++++++%3D++++++++++++++++++%3D++++++++++++++++++++++++++++%E8%A6%81%E6%9C%89%E8%BF%87%E7%A8%8B+%E9%9C%80%E6%80%A5%C2%B7%C2%B7%C2%B7%28x-3%29%3A1%2F2+%3D5%3A0.5++++++++++++++++++%3D++++++++++++++++++%3D++++++++++++++++++%3D%E4%B9%9F%E8%A6%81%E6%9C%89%E8%BF%87%E7%A8%8B+%E9%9C%80%E6%80%A5%C2%B7%C2%B7%C2%B7)
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解比例 要有过程 需急···(x+25):2.4=16:1.2 = = 要有过程 需急···(x-3):1/2 =5:0.5 = = =也要有过程 需急···
解比例 要有过程 需急···
(x+25):2.4=16:1.2
=
= 要有过程 需急···
(x-3):1/2 =5:0.5
=
=
=
也要有过程 需急··· 1/2 表示 二分之一 快点啊
解比例 要有过程 需急···(x+25):2.4=16:1.2 = = 要有过程 需急···(x-3):1/2 =5:0.5 = = =也要有过程 需急···
1.2(x+25)=2.4*16
12(x+25)=24*16
12x+300=384
12x=84
x=7