Question

For what value of x is the value of f(x)=4x-2 equal to 18

Answer 1

f(5) = 4*5-2
f(5)= 20-2
f(5) = 18 the value of x is equal to 5 to make the function equal to 18.

Answer 2

f(x) = 4(5) - 2 → f(x) = 20 - 2 → f(x) = 18