Find F of G of X&G of F of X and determine whether the pair function F&G are inverses of each other. So to find F of G of X, we're going to put the G equation X + 7 / 6 into the F equation every time we see the unknown. So we're going to have 7 * X + 7 / 6 - 6. So if we multiply this out, we get seven six X + 49 six -6. We could think of that. Six is over one. So now we'd want to get a common denominator 7X over 6 + 49 / 6. Six is really 36 / 6. So seven X + 49 - 36 / 6 is going to give us seven X + 13 / 6. Now to do G of F of X, we're going to take the G equation. And every time we see the unknown, we're going to put in the F equation. So seven X - 6 + 7 all over six, we get seven X + 1 / 6. Then we want to determine if they're inverses of each other. They're not inverses of each other. If they had been inverses of each other when we did our manipulation, F of G of X&G of F of X would have given out X.