Which choice describes whether x = 19 is the solution of the equation 42 = 3x – 15? clear check x = 19 is not the solution because 3 • 19 – 15 = 3 • 4 = 12, not 42. x = 19 is the solution because 3 • 19 – 15 = 3 • 4 = 12. x = 19 is the solution because 3 • 19 – 15 = 57 – 15 = 42. x = 19 is not the solution because 3 • 19 – 15 = 57 – 15 = 42.