1.5(10-X)=3两边同时除以1.5,得10-x=2x=8
1.5(10-x)=3 15-1.5x=3 -1.5x=12 x=-8
1.5(10-X)=310-x=3/1.510-x=2x=10-2x=8
1.5(10-X)=310-X=3/1.510-X=2X=10-2X=8
8