purpleroseee1 purpleroseee1

28-05-2020
Mathematics

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If f(x) = 3x + 7, find f(a - 1)

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wegnerkolmp2741o wegnerkolmp2741o

28-05-2020

Answer:

3a+4

Step-by-step explanation:

f(x) = 3x + 7,

Let x = a-1

f(a - 1) = 3(a-1) +7

Distribute

=3a -3 +7

= 3a +4

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