x-2/0.2-x+1/0.5=3,?
(x-2)/0.2-(x+1)/0.5=3,!
(x-2)/0.2-(x+1)/0.5=3
10(x-2)/2-10(x+1)/5=3
5(x-2)-2(x+1)=3
5x-10-2x-2=3
3x=3+12
3x=15
x=15/3=5.