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Posted by **annonyms** on Monday, January 3, 2011 at 5:13pm.

f(x)=7.5x-20

- algebra -
**Marth**, Monday, January 3, 2011 at 5:34pmSet f(x)=0.

f(x)=7.5x-20=0

7.5x=20

x=?

- algebra -
**Blue13**, Monday, January 3, 2011 at 5:53pmx=2.66

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