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.
4
0
9
6
*
x
-
2
7
6
4
8
*
x
+
4
7
1
0
4
*
x
-
3
5
7
7
6
*
x
+
1
3
8
7
2
*
x
-
2
6
9
6
*
x
+
2
0
9
=
0
Math Input
Natural Language
Math Input