18-12-2014
Mathematics

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If f(x)=7-2x find f(3)+6

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macio06 macio06

18-12-2014

To get the answer we have to substitute x=3 and add 6 to the result.
Lets do this
f(x)=7-2x
f(3)=7-2*3=7-6=1
f(3)+6=1+6=7 - its the result

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