1)60:6=10(птахів)-гуси;
2) 60-10=50(птахів)-качки
6х=56-2
6х=54
х=9
14*9+9-9*9+2=56
13у=13+13
у=26/13
у=2
(9t + 37) : 8 = 8
9t + 37 = 8 * 8
9t + 37 = 64
9t = 64 - 37
9t = 27
t = 27 : 9
t = 3
Проверка: (9 * 3 + 37) : 8 = 8
(27 + 37) : 8 = 8
64 : 8 = 8
8 = 8
1.32х =10 3/5 - 4 5/6x-4.15 =2.1
x = 6 3/5 : 1.32 5/6x=2.1+4.15
x = 5 x=6.25: 5/6
x =7 1/2