When Lydia performed an operation on the matrix, she forgot to include one element. the 3 by 4 matrix, row 1, column 1, 1 column 2, 2 column 3, 3 column 4, 5 row 2, column 1, 5 column 2, 3 column 3, negative 1 column 4, negative 11 row 3, column 1, 3 column 2, 2 column 3, negative 2 column 4, negative 13 ce bond right arrow the 3 by 4 matrix, row 1, column 1, 1 column 2, 2 column 3, 3 column 4, 5 row 2, column 1, 0 column 2, b column 3, negative 16 column 4, negative 36 row 3, column 1, 3 column 2, 2 column 3, negative 2 column 4, negative 13 What is the value of the unknown element, b ?