What are the values of c and d in the matrix subtraction? the 2 by 2 matrix, row 1, column 1, 6 column 2, 8 row 2, column 1, negative 11 column 2, 15 minus the 2 by 2 matrix, row 1, column 1, c plus 2 column 2, 3 row 2, column 1, negative 5 column 2, d minus 4 is equal to the 2 by 2 matrix, row 1, column 1, 22 column 2, 5 row 2, column 1, negative 6 column 2, 17