Fatima earned an 85 average in her science class. The average is based on 6 tests that she takes over the span of the marking period. On her first four test she earned an 83, a 78, an 87, and an 80. On her sixth test she scored 8 points more than on her fifth test. Let x be the score Fatima received on her fifth test. Set up an equation using x that models this scenario. Solve the equation and state what Fatima earned on her fifth and sixth tests.