Contact us
Choose a category below so we can get back to you as quickly as possible.
解二元一次方程組常用的方法就是消元代入消元或者加减消元 這題可以採用加减消元的方法來求: 3x-2y=-2——① 7x-y=18——② ②*2-①得:11x=38解得:x=38/11 把x=38/11代入②式得:y=68/11
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.