А+30+12=71
А = 71 - 30 - 12
А = 29
27:9×х=92-67
3x = 25
x = 25/3
x ≈ 8
У×4=27+9
4y = 36
y = 36/4
y = 9
А+30+12=71
А = 71 - 30 - 12
А = 29
27:9×х=92-67
3x = 25
x = 25/3
x ≈ 8
У×4=27+9
4y = 36
y = 36/4
y = 9