Solve system of equations. [ttint: Let u = = and v= and solve for u and v. 4 = 1 ( * - 3 3+1+ - 2:4 15 A) x = - Y y = 1/ B) x = -8 y = 1/3 7 15 C) x = y = -8 D) x = // 1/2 y = -8