Asystem of equations and its solution are given below. system a -x - 2y=7 5x - 6y=-3 solution (-3,-2) choose the correct option that explains what steps were followed to obtain the system of equations below. system b -x - 2y= 7 -16y=32 a. to get system b, the second equation in system a was replaced by the sum of that equation and the first equation multiplied by -5. the solution to system b will not be the same as the solution to system a. b. to get system b, the second equation in system a was replaced by the sum of that equation and the first equation multiplied by -6. the solution to system b will not be the same as the solution to system a. c. to get system b, the second equation in system a was replaced by the sum of that equation and the first equation multiplied by 3. the solution to system b will be the same as the solution to system a. d. to get system b, the second equation in system a was replaced by the sum of that equation and the first equation multiplied by 5. the solution to system b will be the same as the solution to system a.