7x-12(5/3-1/2)=8-2/3(x-9)
7X-20+6=8-2X/3+6
7X-14=14-2X/3
21X-42=42-2X
23X=84
X=47x-12(5/3x-1/2)=8-2/3(x-9)���ˣ��Ǻǣ����˸�x