解方程: ( 1)2x-1/3=2x+1/6 (2)3/4x-2/3=3/4-2/3x (3)x-4x-2/6=1-2x/3 (4)4/5(5/4(x+2)-10)+1=0 (5)t+1/2=t-t-2/3 (6)x-1.5/0.5+0.4x+1/0.2=1 请把这6题解好,