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Marysya12 [62]
3 years ago
15

Please help I’ll give brainiest.

Mathematics
2 answers:
Nataly [62]3 years ago
6 0

Step-by-step explanation:

Simply replace X with 3 etc...

f (x) = 4x + 7

f (3) = 4 (3) + 7

f (3) = 12 + 7

f (3) = 19

f (2x) = 4 (2x) + 7

f (2x) = 8x + 7

sergejj [24]3 years ago
5 0

Answer:

For the first one after F(3), write 4x + 7

4x + 7 12 + 7 = 19

For the second one after F(2x) write 4x + 7

24 + 7 = 31

Step-by-step explanation:

I believe the number after the f represents the x, so you put that into the original equation

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Answer:

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4 years ago
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3 years ago
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Step-by-step explanation:

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