(120-80)x15x=(5-x)x80x15
40x15x=(5-x)x1200
600x=6000-1200x
1800x=6000
x=10/3
(120-80)x15x=(5-x)x80x15 这道方程怎么解?
(120-80)x15x=(5-x)x80x15 这道方程怎么解?
快，快，速告
快，快，速告
数学人气：601 ℃时间：2020-02-04 05:53:50
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