1073 : x = 29
$$x = \frac{1073}{29}$$
$$x = 37$$
Ответ: x = 37
у: 327 = 327
$$y = 327 \times 327$$
$$y = 106929$$
Ответ: y = 106929
(7г - 54) × 39 = 1443
$$7z - 54 = \frac{1443}{39}$$
$$7z - 54 = 37$$
$$7z = 37 + 54$$
$$7z = 91$$
$$z = \frac{91}{7}$$
$$z = 13$$
Ответ: z = 13