Срочно !!!!!!!!! Пожалуйста!
5y = 2 - x y = (2 - x)/5 2x - ((2-x)/5)-2) = 5 2x - ( 2/5 - x/5 - 2) - 5 = 0 2x + 8/5 + x/5 - 25/5 = 0 2x + x/5 = 17/5 10x/5 + x/5 = 17/5 10x + x = 17 11x = 17 x = 17/11 x = 1 6/11 Вроде как так)