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(2014•阿克陶县)解方程.4:x=3:2.4x+12x=94x-3.6=3.61-20%x=124.2:x=0.7×140.75x=258

题目详情
(2014•阿克陶县)
解方程.
4:x=3:2.4  
x+
1
2
x=9  
4x-3.6=3.6
1-20%x=
1
2
4.2:x=0.7×14
0.75
x
=
25
8
解方程.
4:x=3:2.4  
x+
1
2
x=9  
4x-3.6=3.6
1-20%x=
1
2
4.2:x=0.7×14
0.75
x
=
25
8
解方程.
4:x=3:2.4  x+
1
2
x=9  
4x-3.6=3.6解方程.
4:x=3:2.4  
x+
1
2
x=9  
1
2
x=9  
1
2
11224x-3.6=3.61-20%x=
1
2
4.2:x=0.7×14
0.75
x
=
25
8
1-20%x=
1
2
1
2
1
2
11224.2:x=0.7×14
0.75
x
=
25
8
0.75
x
=
25
8
0.75
x
0.750.75xx
25
8
25
8
252588
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(1)4:x=3:2.4           3x=4×2.4        3x÷3=9.6÷3          ...