-9 * (6х + 1) - 1.6 = 5 * (0.1х - 0.5)-54х - 9 - 1.6 = 0.5х - 2.5-54х - 10.6 = 0.5х - 2.5-54х - 0.5x - 10.6 = - 2.5-54х - 0.5x = 10.6 - 2.5-х(54 + 0.5) = 8.1-54.5x = 8.1-54.5x = 8.1x = -8.1 : 54.5x = -8 1/10 : 54 5/10x = -81/10 : 545/10x = -81/10 * 10/545x = -81/545 * 10/10x = -81/545 * 1x = -81/545Ответ: -81/545