1) x + 6 = 49x = 49 - 6x = 43
2) y - 50 = 28y = 28 + 50y = 78
3) 74 - x = 30x = 74 - 30x = 44
Ответ: x = 43, y = 78, x = 44
1) x + 6 = 49
x = 49 - 6
x = 43
2) y - 50 = 28
y = 28 + 50
y = 78
3) 74 - x = 30
x = 74 - 30
x = 44
Ответ: x = 43, y = 78, x = 44