> 数学 >
x+1/5*x+2/5*x+2/5*x+2=310
人气:179 ℃ 时间:2020-09-30 22:22:46
解答
x+1/5*x+2/5*x+2/5*x+2=310
x+x+2=310
2x+2=310
x=154
推荐
猜你喜欢
© 2026 79432.Com All Rights Reserved.
电脑版|手机版