Contact us
Choose a category below so we can get back to you as quickly as possible.
2x+3y=15 解得自然數解為: x=0,y=5 x=3,y=3 x=6,y=1 補充過程: 2x=15-3y x=(15-3y)/2 因為x,y都是自然數, 所以x≥0,且15-3y≥0,15-3y是偶數 所以x≥0,y≤5,y是奇數 所以: 當x=0時,y=5 當x=3時 ,y=3 當x=6時,y=1
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.