If anyone could please help, I've been working on these functions for three days! I really need to understand these concepts so please show work.
Question 1: If f(x) = 7x - 5 show how we find f( 8)
Question 2: If f(x) = 7x - 5 show how we find f(x) = - 3

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In first eq just punch in 8 for x.

thank you for your response, but I've already tried that and I was told the answer was wrong -.-

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