3 years ago

Given f(x) = 3x + 9, find x when f(x) = 21. A) 3 B) 4 C) 7 D) 10

Mathematics

1 answer:

ElenaW [278]3 years ago

4 0

Answer:

Step-by-step explanation:

3(4) + 9 = 21

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<u>Step-by-step explanation:</u>

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Step-by-step explanation:

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