72 80
-
-(x-
12
80
15
80
24
125
125 - 1725 + x) =
40 +y + 26 - 2 +
x+
7
50
3
50
27
+
50
6
Кто мне тому дам пять звёздочек ​

72/80 - (x - 12/80) = 15/80

72/80 - x + 12/80 = 15/80

84/80 - x = 15/80

x = 84/80 - 15/80

x = 69/80

x + 7/50 = 3/50 + 27/50

x + 7/50 = 30/50

x = 30/50 - 7/50

x = 23/50

116/125 - (41/125 + x) = 24/125

116/125 - 41/125 - x = 24/125

75/125 - x = 24/125

x = 75/125 - 24/125

x = 51/125

4/40 + y + 16/40 = 31/40 + 6/40

20/40 + y = 37/40

y = 37/40 - 20/40

y = 17/40