x/y = 5 / 3. x = y + 6. x*y - ?
x = 5y/ 3. 5y/3 = y + 6.
2y/3 = 6
y = 9.
x = y + 6 = 9 + 6 = 15.
Проверка x/y = 15/9 = 5 / 3
S = xy = 15 * 9 = 135
x/y = 5 / 3. x = y + 6. x*y - ?
x = 5y/ 3. 5y/3 = y + 6.
2y/3 = 6
y = 9.
x = y + 6 = 9 + 6 = 15.
Проверка x/y = 15/9 = 5 / 3
S = xy = 15 * 9 = 135