x + 346 = 91x = 912 - 34x = 566
276 + y = 56y = 565 - 27y = 289
821 - a = 43a = 821 - 43a = 382
Ответ: x = 566, y = 289, a = 382.
x + 346 = 91
x = 912 - 34
x = 566
276 + y = 56
y = 565 - 27
y = 289
821 - a = 43
a = 821 - 43
a = 382
Ответ: x = 566, y = 289, a = 382.