(完整)五六年级数学解方程解比例练习题精选
-
(1) 3.5X
+
1.8
=
12.3
(5)
X
+
X
=
21
(6)
2
5
4
p>
2
1
X
+
X
=
5
5
2
(7)
3.6X
÷
2
=
2.16
(8)
X
+
X
=
(2) 0.8X
-
4
=
1.6
2
3
(3) 5X
÷
2
=
10
(10) X
-
2
=
3
5
10
(13)
7
10
X
=
14
25
(16) 180
+
6X
=
330
(19) 15X
÷
2
=
60
(22) 5X
-
< br>X
=
2.4
7
4
(4) X
-
0.25X
=
3
(11) 2X
< br>+
7X
=
9
10
(14)
1
2
X
=
3
4
(17) 2.2X
-
1
=
10
(20) 4X
+
< br>X
=
3.15
(23) 1.5X
-
X
=
1
(9) X
-
2
X
=
3
5
10
(12)
3
2
8
+
X
=
5
(15)
5
9
X
=
10
(18) X
-
0.8X
=
10
21
)
3.4X
+
1.8
p>
=
8.6
(24) 6.6X
-
6X
=
1.8
(
(25)
2X
-
X
=
(26)
χ
+2.4
χ
=6
(27)3.5:
χ
=5:4.2
2
3
3
4
3
5
(28)1.8
χ-χ
=2.4
(29)
10
=
2
.
5
(30)6
×
3
-
1.8
χ
=7.2
< br>(31)17
-
5
χ
=2.4+3
1
5
(34)12.6
×
5
6
-
2
χ
=8
(37)
2
3
χ
+50%=42
(40)2
χ
+4.3
×
3=14
1
2
(
43
)<
/p>
3
1
2
÷
4
χ=
2.5
x
0
p>
.
8
(32
)
x
4
=
1<
/p>
.
2
5
(35
)
x
1
.
2<
/p>
=
1
.
5
0
.
6
(38)4
χ-
13=31
(41)
χ×
(1
< br>-
3
)
=
1
2
8
3
(
44
)
x
=<
/p>
1
.
5
0
.
4
6
(33)
χ-
1
4
χ
=
3
8
(36)
3
×
1
-χ
=
1
5
2
5
p>
(39)4.5+8
χ
=27
1
2
(
< br>42
)χ-
1
χ=
3
4
8
< br>45
)
1.6
:χ=
2
:
3
5
10
(