Contact us
Choose a category below so we can get back to you as quickly as possible.
方法一: 設8立方米的X個,27立方米的Y個 則X+Y=35 8X+27Y=432 解得:X=27 Y=8 方法二: 設8立方米的X個則27的35-X個 則:8X+27(35-X)=432 解得:X=27 即:8立方米的27個27立方米的8個
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.