Решите уравнение: а) -4,3x=14,62 б)11/15y+9/10=8/15

а) -4,3x = 14,62 -4 3/10x = 14 62/100-43/10x = 1462/100x = -1462/100 : 43/10x = -1462/100 * 10/43x = -1462/43 * 10/100x = -34 * 1/10x = - 34/10x = -3 4/10x = -3,4Ответ: -3,4б) 11/15y + 9/10 = 8/1511/15y = 8/15 - 9/1011/15y = 24/30 - 27/3011/15y = (24 - 27)/3011/15y = - (-24 + 27)/3011/15y = - (27 - 24)/3011/15y = -3/3011/15y = -1/10y = -1/10 : 11/15y = -1/10 * 15/11y = (-1 * 15)/(10 * 11)y = -15/110y = -3/22Ответ: -3/22