75%x-40%x=300 用解方程怎么算
问题描述:
75%x-40%x=300 用解方程怎么算
答
(75%-40%)x=300
35%x=300
x=300/35%
x=6000/7
答
(75%-40%)x=300
35%x=300
x=6000/7
答
75%x-40%x=300
0.75x - 0.4x = 300
0.35x = 300
x = 6000/7