Given cap r is equal to the 2 by 2 matrix, row 1, column 1, 0 column 2, 3 row 2, column 1, negative 4 column 2, 5 and cap s is equal to the 2 by 2 matrix, row 1, column 1, negative 2 column 2, negative 8 row 2, column 1, 0 column 2, 2 What is cap x if cap x plus cap r is equal to cap s ?