Diketahui matriks A = (x 2 3 -4), B = (2 1 y 0), C = (-1 3

Diketahui matriks A = (x 2 3 -4), B = (2 1 y 0), C = (-1 3 -2 1), dan D = (-7 8 z -9). Jika 3A + BC = D^T ; (D^T = transpose D), nilai dari 2x + 3y - z =