> 数学 >
3x / 0.5 - 2-x/0.4 = 1
人气:494 ℃ 时间:2020-06-14 04:49:32
解答
3x / 0.5 - 2-x/0.4 = 1
6x - 2 - 2.5x = 1
3.5x = 3
x = 6/7
推荐
猜你喜欢
© 2026 79432.Com All Rights Reserved.
电脑版|手机版