x−2y+3z=5, xy/3+yz−zx/2=4,x2+4y2+9z2 https://www.wolframalpha.com/input?key=&i=x%E2%88%922y%2B3z%3D5%2C+xy%2F3%2Byz%E2%88%92zx%2F2%3D4%2Cx2+%2B+4y2%2B9z2+&lang=ja x−2y+3z=5, xy/3+yz−zx/2=4 https://www.wolframalpha.com/input?key=&i=x%E2%88%922y%2B3z%3D5%2C+xy%2F3%2Byz%E2%88%92zx%2F2%3D4&lang=ja やる気をだせば、連立方程式が解けますか?
(類題)数字の13は、におい?ますね。
https://qiita.com/mrrclb48z/items/7c16cb5141a495bc5307#%E5%88%A5%E8%A7%A3
ひと目見て、整数解を出せる人がいれば、点検は、楽勝?ですか?
x−2y+3z=5, xy/3+yz−zx/2=4,x2+4y2+9z2
https://www.wolframalpha.com/input?key=&i=x%E2%88%922y%2B3z%3D5%2C+xy%2F3%2Byz%E2%88%92zx%2F2%3D4%2Cx2+%2B+4y2%2B9z2+&lang=ja
x−2y+3z=5, xy/3+yz−zx/2=4
https://www.wolframalpha.com/input?key=&i=x%E2%88%922y%2B3z%3D5%2C+xy%2F3%2Byz%E2%88%92zx%2F2%3D4&lang=ja
やる気をだせば、連立方程式が解けますか?