Simplify each expression by combining like terms. 2a + 3b + = -10x - 8x -6a + 2a 8y + 7y x - x 8x + 7 - 5x - 3 9 - 7h + 7h - 15 -4n + 4 - 7n - 10 8w - 2 - 5w - 3 No need tospace in your answer -9s + 3 - 4t + 6s - 3t - 2 -5a + 8 + 12a - 4 - 2b 7x - 6y + 4x - y + 8 When entering your expressions, list the variables in alphabetical order with constants at the end. Which one of the following expressions represent additive inverses? -5x - 5x -5y - 9y 8a + 8a -7a + 7a |