Question

3x + 2y + 5z = 2 x + 2y + 5z = 4 –x + 3y + z = 2 3x + 4y + 5z = 32

Answer 1

Respuesta:

(3×) + (5z) = 2 x (+2y) + (5z) = 4 - (x) + (3y) + (z) = 2 (3×)