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If f(x)=-x+7 , what is f(15) f(15) = ?
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If f(x)=-x+7 , what is f(15)
f(15) = ?

User Stepozer
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f(x)=-x+7\\\\ f(15) => x=15 \\\\ f(15) = -15+7 = -(15-7)=-8
User Krispy
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2 votes
f(15) = -15 + 7
f(15) = -8
User Prawn
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