please kindly show your working ... so as for me to have a better understanding of your solutions ..thanks..

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Solve the following system of equations using Cramer's Rule. The solution is. D (Type integers or simplified fractions.) - 2x + 5y +z =6 3x + 2y + z = -1 - 3x - 2y + z= 0Evaluate | A| by expanding down the third column. -3 -9 A = 4 0 -6 -5 . . . |Al = JA13+ (JJA23 + ()A33 IAl =(Simplify your answer.)Solve the system of equations by using the inverse of the coefficient matrix of the equivalent matrix equation. x + 2y = 0 5x + 5y = - 10 The inverse of matrix A, A , is (Type an integer or simplified fraction for each matrix element.) The solution of the system is . (Type an ordered pair.)Write an augmented matrix for the following system of equations. 8x - Y + 67 = - 6 3x - y + 7z = 2 4y - 3z = - 3 . . . The entries in the matrix are:Find the maximum value and the minimum value of the function and the values of x and y for which they occur. P = 16x - 5y + 66, subject to 7x + 8y s 56, 0 sys 4, and OSx$ 6. The maximum value of the function is and it occurs where x = and y = The minimum value of the function is and it occurs where x = and y = (Do not round until the final answer. Then round to two decimal places as needed.)An animal feed to be mixed from soybean meal and oats must contain at least 168 lb of protein, 27 lb of fat, and 14 lb of mineral ash. Each sack of soybeans costs $21 and contains 70 lb of protein, 9 lb of fat, and 7 lb of mineral ash. Each sack of oats costs $7 and contains 21 lb of protein, 7 lb of fat, and 1 lb of mineral ash. How many sacks of each should be used to satisfy the minimum requirements at minimum cost? What is the minimum cost? $(Round to the nearest cent as needed.) How many sacks of each feed should be used to satisfy the minimum requirements at minimum cost? sacks of soybean meal sacks of oats (Simplify your answers. Type integers or fractions.)