Latest exam Aptitude Question SOLUTION: Please show me how to solve the problems such as: 4r -7 = 8r + 13, 5x - 8 = 6 - 2x, t/5 - 7 + 31 = 8(6-4), and 9-5(4-3) = -16 x/3 ("x over 3" and "t over 5 "). Thank y