This composition of a function has us doing H 1st and then putting it into the G equation and then putting it into the F equation. So we're going to take that H equation, which was 2 + X and replace it. So this H of X came out and we put in what it equaled, which was 2 + X. Now we're going to take that 2 + X and put it into the G equation. So every time we see the unknown, we're going to put in 2 + X. So instead of -4 times the unknown, it's going to now be -4 * 2 + X. If we distribute that, we get -8 -, 4 X and the last step's going to be to then put -8 -, 4 X into the F equation for the unknown. So -8 - 4 X -1. When we combine like terms, we get -4 X -9.