11(y-4)+10(5-3y)-3(4-3y)=-6 10(3x-2)-3(5x+2)+5(11-4x)=25 Решить уравнение.
11y - 44 + 50 - 30y - 12 + 9y = - 6 - 19y + 9y = - 6 + 6 - 10y = 0 y = 0 30x - 20 - 15x - 6 + 55 - 20x = 25 15x - 20x = 26 - 55 + 25 - 5x = - 29 + 25 - 5x = - 4 5x = 4 x = 4/5 x = 0,8