Please help me with this question I am trying to help my son with this problem that his teacher said was not correct. Please help me break it down better for my son.Which ordered pair is the best estimate for the solution of the system of equations?y=−1/2x+4y=1/2x−3A. (7.5, 0.5)B. (7, 0.5)C. (7, 0)D. (7, 1)