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given f(x) = 5x-1 , evaluate f(5)= also solve f(x)=14 then x= ?

Sagot :

You have the following expression for f(x):

f(x) = 5x - 1

In order to find the value of f(5), replace x = 5 into the previous expression and simplify:

f(5) = 5(5) - 1 = 25 - 1 = 24

Hence, f(5) is 24

To determine the value of x when f(x) = 14, solve for x, as follow:

14 = 5x - 1 add 1 both sides

14 + 1 = 5x

15 = 5x divide by 5 both sides

15/5 = x

3 = x

x = 3

Hence, x = 3 when f(x) = 14

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