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satela [25.4K]
3 years ago
5

Use the function f (x) = 3x - 5 to find x when f (x) =7

Mathematics
2 answers:
Len [333]3 years ago
5 0

Answer:

x = 4

Step-by-step explanation:

So basically, you substitute f(x) with the f(x) in the equation.

7 = 3x - 5

Afterwards, just solve the equation by isolating the variable.

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

12 = 3x

12/3 = 3x/3

x=4

<em />

<em>I hope this helps!!!</em>

nataly862011 [7]3 years ago
5 0

Answer:

18×

Step-by-step explanation:

because you need to time then divide than subtract by the spare root of 7

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