Răspuns :
x + y = 48
x / y = 3 / 5 => x = 3y / 5
x + y = 48
3y / 5 + y = 48
3y / 5 + 5y / 5 = 48
8y / 5 = 48
y = 48 * 5 / 8 = 6 * 5 = 30
x = 3y / 5 = 90 / 5 = 18
x / y = 3 / 5 => x = 3y / 5
x + y = 48
3y / 5 + y = 48
3y / 5 + 5y / 5 = 48
8y / 5 = 48
y = 48 * 5 / 8 = 6 * 5 = 30
x = 3y / 5 = 90 / 5 = 18