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.
f
l
o
o
r
2
x
+
f
l
o
o
r
3
x
+
f
l
o
o
r
7
x
=
2
0
0
8
Math Input
Natural Language
Math Input