鍏勾绾цВ鏂圭▼缁冧範棰?/p>
1
/
6
瑙ｆ柟绋?/p>
1
X
锛?/p>
2
7
X=
4
3
2X +
2
5
=
3
5
70%X + 20%X = 3.6
X
脳
5
3
=20
脳
4
1
25% + 10X =
5
4
X - 15%X = 68
X
锛?/p>
8
3
X
锛?/p>
121 5X
锛?/p>
3
脳
21
5
锛?/p>
7
5
3
2
X
梅
4
1
锛?/p>
12
6X
锛?/p>
5 =13.4
8
3
4
1
4
3
飥?/p>
飥?/p>
X
3X=
8
3
X
梅
7
2
=
16
7
X
锛?/p>
8
7
X=
4
3
4X
锛?/p>
6
脳
3
2
=2
12
5
梅
X=
3
10
5
3
X =
72
25
9
8
X =
6
1
脳
51
16
X
梅
35
6
=
45
26
脳
25
13
4
x
锛?/p>
3
脳
9 = 29
2
1
x
+
6
1
x
= 4
10
3
X
锛?/p>
21
脳
3
2
=4 6X
锛?/p>
5 =13.4
2
5
X-
1
3
X=
3
10
4
蠂锛?/p>
6
锛?/p>
38
21
8
X=
15
4
X
梅
5
4
=
28
15
3
2
X
梅
4
1
=12
5
3
X=
72
25
9
8
X=
6
1
脳
51
16
瑙ｆ柟绋?/p>
2
X
梅
35
6
=
45
26
梅
25
13
X-0.25=
4
1
4
X
=30%
4+0.7X=102
3
2
X+
2
1
X
=42 X+
4
1
X=105
X-
8
3
X=400
X-0.125X=8
X
36
=
4
3
X+
3
7
X=18 X
脳
(
1
6
+
3
8
)=
13
12
x
锛?/p>
0.375x=
6
5
x
脳
3
2
+
2
1
=4
脳
8
3
X
锛?/p>
7
3
X
锛?/p>
12
5 X
锛?/p>
2.4
脳
5
锛?/p>
8
0.36
脳
5-
3
4
x
=
3
5
2
3
(x-
4.5)
=
7
1
2
x-
25%x
=
10
x-
0.8x
=
16+6 20
x
鈥?/p>
8.5=
1.5 x-
4
5
x
-4=
21
X
锛?/p>
25%X=90
X
锛?/p>
3
7
X=
8
9
5
3
蠂
+2.4
蠂
=6
3.5:
蠂
=5:4.2
1.8
蠂锛嵪?/p>
=2.4
x
10
=
8
.
0
5
.
2
6
脳
3
锛?/p>
1.8
蠂
=7.2
17
锛?/p>
5
蠂
=2.4+3
5
1
4
x
=
5
2
.
1
12.6
脳
6
5
锛?/p>
2
蠂
=8
2
.
1
x
=
6
.
0
5
.
1
5
3
脳
2
1
锛嵪?/p>
=
5
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11
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45
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