Sean’s father decided that the number of hours Sean should study daily is equal to the equation LaTeX: y+4x=16y + 4 x = 16, where y is the number of study hours and x is the number of relaxation hours. Sean’s mother believes that the number of hours Sean should study daily should be equal to the equation LaTeX: 2y+5x=322 y + 5 x = 32. Sean’s parents have decided to use both equations to determine the number of hours Sean should study and relax. What is an equivalent equation to the addition of Sean’s mother’s equation and Sean’s father’s equation?