(5x + 2x) * 14 = 294
7x * 14 = 294
98x = 294
x = 294 / 98
x = 3
(12y - 5y) / 4 = 21
7y / 4 = 21
7y = 84
y = 84 / 7
y = 12
Therefore, x = 3 and y = 12.
(5x + 2x) * 14 = 294
7x * 14 = 294
98x = 294
x = 294 / 98
x = 3
(12y - 5y) / 4 = 21
7y / 4 = 21
7y = 84
y = 84 / 7
y = 12
Therefore, x = 3 and y = 12.