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.
7
.
3
x
+
2
=
6
x
4
0
3
2
x
-
1
4
1
Math Input
Natural Language
Math Input
