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
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