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解方程.4.5x-1.5×2=512x=56:0.250.9×8-0.5x=5.6x1.6=58x:28%=74:0.735(3.5-x)=125.

题目详情
解方程.
4.5x-1.5×2=5       
12
x
=
5
6
:0.25    
0.9×8-0.5x=5.6
x
1.6
=
5
8

x:28%=
7
4
:0.7
3
5
(3.5-x)=1
2
5


12
x
=
5
6
:0.25    
0.9×8-0.5x=5.6
x
1.6
=
5
8

x:28%=
7
4
:0.7
3
5
(3.5-x)=1
2
5
12
x
1212xx
5
6
:0.25    
0.9×8-0.5x=5.6
x
1.6
=
5
8

x:28%=
7
4
:0.7
3
5
(3.5-x)=1
2
5
5
6
5566

x
1.6
=
5
8

x:28%=
7
4
:0.7
3
5
(3.5-x)=1
2
5
x
1.6
xx1.61.6
5
8

x:28%=
7
4
:0.7
3
5
(3.5-x)=1
2
5
5
8
5588
7
4
:0.7
3
5
(3.5-x)=1
2
5
7
4
7744
3
5
(3.5-x)=1
2
5
3
5
3355
2
5
2
5
2255
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