Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
2x + y = 5 与 x - y = 1 的交点。(答: (2, 1) 。)
2x + y = 5 与 x - y = 1 的交点。(答: (2, 1) 。)
Natural Language
Math Input
Extended Keyboard