dannyboy9723 dannyboy9723 09-01-2024 Mathematics contestada Problem 15.2 In each case, solve the systems of equations by finding the inverse of the coefficient matrix. 3x - y = 5 2x + y + 2z = 0 x - 2y + 4z = -2 a. x = 1, y = 2, z = -1 b. x = 2, y = -1, z = 3 c. x = -1, y = 3, z = 2 d. x = 3, y = -2, z = 1