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How do you work this out?

4f+3f+3=17?

I only need an explination
Guest Mar 28, 2012
 #1
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4f+3f+3=17
with: 4f+3f=7f
7f+3=17
-3 on both sides:
7f+3-3=17-3
7f=14
divide both sides by 7
7f/7 = 14/7
f = 2

[input]4f+3f+3=17[/input]
admin  Mar 28, 2012

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