解方程:(1)0.02分之0.1x-0.2-3=0.5分之x+1
(0.1x-0.2)/0.02-3=(x+1)/0.5
(10x-20)/2-3=2(x+1)
5x-10-3=2x+2
3x=15
x=5
(2)0.3分之0.1x-0.1-0.2x=2
(x-1)/3-0.2x=2
x-1-0.6x=6
0.4x=7
x=35/2
(1)5x-0.2-3=2x+2
5x-0.2-3-2=2x
3x=5.2
x=26/15
(2)x/3-0.2x-0.1=2
4x/30=2.1
x=15.75