Use the information to write an equation with variables on both sides. let x represent kim’s age. bob is 4 years older than twice kim’s age. paul is 1 year younger than 3 times kim's age. bob and paul are the same age. which equation can be used to determine kim’s age, x, from the information about bob and paul? 4x 2 = 3x 1 4x 2 = 3x (â€"1) 2x 4 = 3x 1 2x 4 = 3x (â€"1)