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Mathematics

Answered

25) f (x) = 7x + 5; Find f (3x - 1)

Answer :

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Answer:

f(3x - 1) = 21x - 2

Step-by-step explanation:

Step 1:

Given: f(x) = 7x + 5

Find: f(3x - 1)

Step 2: Then, f(x) = 7x + 5

Replace x ------> 3x - 1

f(3x - 1) = 7(3x - 1) + 5

f(3x - 1) = 21x - 7 + 5

f(3x - 1) = 21x - 2

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