Question

F(x)=6x+2 what is the value of f(x) when x is 3

Answer 1

20 because when you multiply 6X buy three you get 18 and when you add 18 to 2 you get 20

Answer 2

When you plug in the value of x (3) this is the equation you get and how to work it out:

f(3)=6(3)+2

3f=18+2

3f=20

f= 20/3 (you can also write it in decimal form which is 6.66667

:)