Question

F(x) = 4x +5 when f(x) = 17

Answer 1

`\huge\boxed{\sf x = 3 }`

Explanation:

Given that

f(x) = 4x + 5

Put f(x) = 17

17 = 4x + 5

Subtract 5 to both sides

17 - 5 = 4x

12 = 4x

Divide 4 to both sides

12 / 4 = x

3 = x

OR

x = 3

`\rule[225]{225}{2}`

Hope this helped!

~AH1807