ax+ay+2y+2x/2a+4 * 6/5x+5y решение
A(x+y) + 2(x+y)/2(a+2) * 6/5(x+y) dalee priobrazovyvaem (x+y)*2a*6/2(a+2)(x+y) sokrawaem otvet 6a/a+2