htxfilza htxfilza

15-10-2017
Mathematics

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If f(x) = −5x + 11 and f(n) = 21, what is the value of n?

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Аноним Аноним

15-10-2017

f(n) = -5n + 11
21 = -5n + 11
10 = -5n
n = -2

Answer Link

curlykidd curlykidd

15-10-2017

n=-2

It may help you visualize what this question is asking for if you let x = n in f(x)= -5x+11.

Let x = n

f(n) = -5n + 11
21 = -5n + 11
10 = -5n
n = -2

Answer Link

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