=(4ab( 3a + 2b))\ (3a-2b)(3a+2b)= 4ab \ 3a - 2b
Ответ:
3/9y - 3 = -12 + y/9
3/9 y - y/9 = - 12 + 3
2/9y = -9
y = -9 ÷ 2/9
y = -9×9 / 2
y= -81/2
y= - 40,5