20 dirol
Пошаговое объяснение:
x - dirol
y - love is
x+y = 38 ⇒ y = 38-x
20x + 10y = 580 tenge
zamenyaem y = 38-x
20x + 10 * (38-x) = 580
20x + 380 - 10x = 580
10x = 580-380
10x = 200
x = 20
20 dirol
Пошаговое объяснение:
x - dirol
y - love is
x+y = 38 ⇒ y = 38-x
20x + 10y = 580 tenge
zamenyaem y = 38-x
20x + 10 * (38-x) = 580
20x + 380 - 10x = 580
10x = 580-380
10x = 200
x = 20