练习册---1.X+1=1/2X-12.2(X-5)=3(5X+1)-333.9X-3(X-2)=6X+25.5X/24

1.2x+2=x-2
x=-4
2.2x-10=15x+3-33
2x-15x=3-33+10
-13x=-20
x=20/13
3.9x-3x+6=6x+2
9x-3x-6x=2-6
x=无解
4.5x/24=（3x-4）/8-2
5x/24=(3x-4)/6
5x=(3x-4)*4
5x=12x-16
7x=16
x=16/7(你没打错题目吧?)
5.(y-1)/2=2-[(3y-4)/5],
5(y-1)=20-2(3y-4),
5y-5=20-6y+8,
11y=33,
y=3.(这道你可能也打错了吧)