(50-x):7+195=40*5
(50-x):7+195 = 200
(50-х):7 = 5
50-х = 7*5
50-х = 35
х = 50-35
х = 15
ответ: х = 15.
(50-x):7+195=40*5 (50-x):7+195=200 (50-x):7=200-195 (50-x):7=5 50-x=7*5 50-x=35x=50-35x=15S={15}
(50-x):7+195=40*5
(50-x):7+195 = 200
(50-х):7 = 5
50-х = 7*5
50-х = 35
х = 50-35
х = 15
ответ: х = 15.
(50-x):7+195=40*5
(50-x):7+195=200
(50-x):7=200-195
(50-x):7=5
50-x=7*5
50-x=35
x=50-35
x=15
S={15}