解方程 (1)x+25%x=8 (2)(1-40%)x=6.3 (3)1/4x5%x=4.解方程 (1)x+25%x=8 (2)(1-40%)x=6.3 (3)1/4x5%x=4.8 (4)80%x+4.8=20
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![解方程 (1)x+25%x=8 (2)(1-40%)x=6.3 (3)1/4x5%x=4.解方程 (1)x+25%x=8 (2)(1-40%)x=6.3 (3)1/4x5%x=4.8 (4)80%x+4.8=20](/uploads/image/z/1631037-21-7.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B+%EF%BC%881%EF%BC%89x%2B25%25x%3D8+%EF%BC%882%EF%BC%89%EF%BC%881-40%25%EF%BC%89x%3D6.3+%EF%BC%883%EF%BC%891%2F4x5%25x%3D4.%E8%A7%A3%E6%96%B9%E7%A8%8B+%EF%BC%881%EF%BC%89x%2B25%25x%3D8+%EF%BC%882%EF%BC%89%EF%BC%881-40%25%EF%BC%89x%3D6.3+%EF%BC%883%EF%BC%891%2F4x5%25x%3D4.8+%EF%BC%884%EF%BC%8980%25x%2B4.8%3D20)
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解方程 (1)x+25%x=8 (2)(1-40%)x=6.3 (3)1/4x5%x=4.解方程 (1)x+25%x=8 (2)(1-40%)x=6.3 (3)1/4x5%x=4.8 (4)80%x+4.8=20
解方程 (1)x+25%x=8 (2)(1-40%)x=6.3 (3)1/4x5%x=4.
解方程 (1)x+25%x=8 (2)(1-40%)x=6.3 (3)1/4x5%x=4.8 (4)80%x+4.8=20
解方程 (1)x+25%x=8 (2)(1-40%)x=6.3 (3)1/4x5%x=4.解方程 (1)x+25%x=8 (2)(1-40%)x=6.3 (3)1/4x5%x=4.8 (4)80%x+4.8=20
(1)x+25%x=8
x+0.25x=8
1.25x=8
x=6.4
(2)(1-40%)x=6.3
0.6x=6.3
x=10.5
(3)1/4x5%x=4.8
0.25×0.05x=4.8
0.0125x=4.8
x=384
(4)80%x+4.8=20
0.8x=20-4.8
0.8x=15.2
x=19