789 + x = 20*30 + 9 - 4340/10789 + x = 600 + 9 - 434789 + x = 175
x = 175 - 789x = -614
897 - 203(348 + 474) - x = 4020 + 1350897 - 203 * 822 - x = 800 + 650897 - 166446 - x = 1450-165549 - x = 1450x = -165549 - 1450x = -166999
847 + 925 = 1772
Ответ: x = -614, x = -166999, 1772
789 + x = 20*30 + 9 - 4340/10
789 + x = 600 + 9 - 434
789 + x = 175
x = 175 - 789
x = -614
897 - 203(348 + 474) - x = 4020 + 1350
897 - 203 * 822 - x = 800 + 650
897 - 166446 - x = 1450
-165549 - x = 1450
x = -165549 - 1450
x = -166999
847 + 925 = 1772
Ответ: x = -614, x = -166999, 1772