Odpowiedź:
A. (3x – 16y): 4 = (3/4)x - (16/4)y = (3/4)x - 4y = 0,75x - 4y
B. (9x - 16y): 4 = (9/4)x - 4y = 2,25x - 4y
C. (12x – 9y): 3 = 4x - 3y
D. (9x - 12y): 3 = 3x - 4y
Szczegółowe wyjaśnienie:
A. (3x – 16y): 4 = (3/4)x - (16/4)y = (3/4)x - 4y = 0,75x - 4y
B. (9x - 16y): 4 = (9/4)x - 4y = 2,25x - 4y
C. (12x – 9y): 3 = 4x - 3y
D. (9x - 12y): 3 = 3x - 4y