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.
Lö if \begincases x = 2y }, {x + y = 9 \endcases . (Antw.: (6, 3) .)
Lö if \begincases x = 2y }, {x + y = 9 \endcases . (Antw.: (6, 3) .)
Natural Language
Math Input
Extended Keyboard
