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.
solve 10a + 5b -ab = -80 , 22a+5b+ab = -100
solve 10a + 5b -ab = -80 , 22a+5b+ab = -100
Natural Language
Math Input
Extended Keyboard
