Question 13490
you first start out by multiplying 4 by everything inside the pare.
so you will now have the problem..4x-4+2=18
now you add four                    +4  +4
that will leave you with 4x+2=22
now you subtract           -2-2
that then leaves you with 4x=20
now you divide both sides by four
four divide by four cancells out and leaves you with x
so x =s five

you can check your work just say four times five minus four plus two equals 18