If 1.78 + [1 and 7 / 8 * 0.8-3 (x + 3 / 9)] / 5 / 6 = 0.28, find X

If 1.78 + [1 and 7 / 8 * 0.8-3 (x + 3 / 9)] / 5 / 6 = 0.28, find X

According to the meaning, 1.78 + (0.5-3x) * 1.2 = 0.28, so: 1.78 + 0.6-3.6x = 0.28, so: 2.38-3.6x = 0.28, so x = 7 / 12