(1)x-2x-1/3=x-1/2 (2)3x+1/2 - 3x-2/10=2- 2x+3/5
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(1)x-2x-1/3=x-1/2 (2)3x+1/2 - 3x-2/10=2- 2x+3/5
(3) x+1/0.3 - 2x - 1/0.7=0 (4)2[4/3x-(2x/3 - 1/2)]=5/4x
(3) x+1/0.3 - 2x - 1/0.7=0 (4)2[4/3x-(2x/3 - 1/2)]=5/4x
![(1)x-2x-1/3=x-1/2 (2)3x+1/2 - 3x-2/10=2- 2x+3/5](/uploads/image/z/4877214-6-4.jpg?t=%EF%BC%881%EF%BC%89x-2x-1%2F3%3Dx-1%2F2+%EF%BC%882%EF%BC%893x%2B1%2F2+-+3x-2%2F10%3D2-+2x%2B3%2F5)
1、 x-2x-1/3=x-1/2
x-2x-x=1/3-1/2
-2x=-1/6
x=1/12
2、3x+1/2 - 3x-2/10=2- 2x+3/5
3x-3x+2x=2+3/5-1/2+2/10
2x=23/10
x=23/20
3、x+1/0.3 - 2x - 1/0.7=0
x-2x=1/0.7-1/0.3
-x=10/7-10/3
-x=-40/21
x=40/21
4、2[4/3x-(2x/3 - 1/2)]=5/4x
两边同时除以2
4/3x-(2x/3 - 1/2)=5x/8
4x/3-2x/3+1/2=5x/8
2x/3-5x/8=-1/2
同时乘以24
16x-15x=-12
x=-12
x-2x-x=1/3-1/2
-2x=-1/6
x=1/12
2、3x+1/2 - 3x-2/10=2- 2x+3/5
3x-3x+2x=2+3/5-1/2+2/10
2x=23/10
x=23/20
3、x+1/0.3 - 2x - 1/0.7=0
x-2x=1/0.7-1/0.3
-x=10/7-10/3
-x=-40/21
x=40/21
4、2[4/3x-(2x/3 - 1/2)]=5/4x
两边同时除以2
4/3x-(2x/3 - 1/2)=5x/8
4x/3-2x/3+1/2=5x/8
2x/3-5x/8=-1/2
同时乘以24
16x-15x=-12
x=-12
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