简单的数学题目，求求了！

(1)
2x-1/4=-x/4+2
=>8x-1=-x+8
=>9x=9
=>x=9
(2)
-3(2x-3)+2(x-2)=3
=>-6x+9+2x-4=3
=>-4x+5=3
=>4x=2
=>x=1/2
(3)
1/5(x+2)=1/3(x-3)
=>3(x+2)=5(x-3)
=>3x+6=5x-15
=>2x=21
=>x=21/2
(4)
-2(x-1)=4+x
=>-2x+2=4+x
=>3x=-2
=>x=-2/3
(5)
2(x+14)=x+20
=>2x+28=x+20
=>x=-8
(6)
1/5(x+15)=1/2-(x-7)
=>2(x+15)=5-10(x-7)
=>2x+30=5-10x+70
=>2x+30=-10x+75
=>12x=45
=>x=45/12=15/4
(7)
2(x+4)-1=3
=>2x+8-1=3
=>2x+7=3
=>2x=-4
=>x=-2
(8)
1/5x-1/2(3-2x)=1
=>2x-5(3-2x)=10
=>2x-15+10x=10
=>12x-15=10
=>12x=25
=>x=25/12