Question

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

Answer 1

18×

Explanation:

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

Answer 2

x = 4

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

I hope this helps!!!