1/2x-1/4（x-1）=2/3（x-1）6x-3x+3=8x-8-5x=-11x=11/5x - x-1 / 3 = 1 - x+3 / 515x-5x+5=15-3x-913x=-14x=-14/13x / 0.7 - 1.7-x / 0.3 = 110x/7-(17-10x)/3=130x-109+70x=21100x=130x=1.3