раскроем скобки
6x2-x+27x-4.5-6x2+3x-3.2x+1.6 = -3.8x
29.6x-2.9 = 0
29.6x = 2.9
x = 0.097972972972973
раскроем скобки
6x2-x+27x-4.5-6x2+3x-3.2x+1.6 = -3.8x
29.6x-2.9 = 0
29.6x = 2.9
x = 0.097972972972973