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©2026 数学クラブ http://sugaku.club/
月 日( )
● 次の方程式を解きなさい
[0E4-00]
(1)
8
x
+
6
x
−
9
=
−9
x
−
32
(2)
−1
+
10
x
=
7
x
+
5
x
+
11
(3)
9
x
+
4
+
2
x
=
−8
x
−
15
(4)
5
−
5
x
=
−9
x
+
x
−
19
(5)
−8
x
−
9
=
6
x
+
8
x
−
141
(6)
4
x
−
7
=
4
x
+
21
+
4
x
(7)
10
x
−
3
+
6
x
=
2
x
+
123
(8)
5
x
−
8
=
−7
x
+
4
x
+
48
(9)
−8
x
+
5
=
−4
x
−
47
+
9
x
(10)
−10
x
+
7
=
−7
x
+
3
x
−
47
(11)
5
−
5
x
=
x
+
x
+
68
(12)
4
x
−
9
=
−8
x
+
31
+
8
x
(13)
10
−
x
+
9
x
=
−5
x
−
16
(14)
−3
x
−
7
=
6
x
+
6
x
−
37
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
8
x
+
6
x
−
9
=
−9
x
−
32
8
x
+
6
x
+
9
x
=
−32
+
9
x
=
−23
÷
23
x
=
−1
(2)
−1
+
10
x
=
7
x
+
5
x
+
11
10
x
−
7
x
−
5
x
=
11
+
1
x
=
12
÷
(
−2
)
x
=
−6
(3)
9
x
+
4
+
2
x
=
−8
x
−
15
9
x
+
2
x
+
8
x
=
−
15
−
4
x
=
−19
÷
19
x
=
−1
(4)
5
−
5
x
=
−9
x
+
x
−
19
−5
x
+
9
x
−
x
=
−19
−
5
x
=
−24
÷
3
x
=
−8
(5)
−8
x
−
9
=
6
x
+
8
x
−
141
−8
x
−
6
x
−
8
x
=
−141
+
9
x
=
−132
÷
(
−22
)
x
=
6
(6)
4
x
−
7
=
4
x
+
21
+
4
x
4
x
−
4
x
−
4
x
=
21
+
7
x
=
28
÷
(
−4
)
x
=
−7
(7)
10
x
−
3
+
6
x
=
2
x
+
123
10
x
+
6
x
−
2
x
=
123
+
3
x
=
126
÷
14
x
=
9
(8)
5
x
−
8
=
−7
x
+
4
x
+
48
5
x
+
7
x
−
4
x
=
48
+
8
x
=
56
÷
8
x
=
7
(9)
−8
x
+
5
=
−4
x
−
47
+
9
x
−8
x
+
4
x
−
9
x
=
−
47
−
5
x
=
−52
÷
(
−13
)
x
=
4
(10)
−10
x
+
7
=
−7
x
+
3
x
−
47
−10
x
+
7
x
−
3
x
=
−47
−
7
x
=
−54
÷
(
−6
)
x
=
9
(11)
5
−
5
x
=
x
+
x
+
68
−5
x
−
x
−
x
=
68
−
5
x
=
63
÷
(
−7
)
x
=
−9
(12)
4
x
−
9
=
−8
x
+
31
+
8
x
4
x
+
8
x
−
8
x
=
31
+
9
x
=
40
÷
4
x
=
10
(13)
10
−
x
+
9
x
=
−5
x
−
16
−
x
+
9
x
+
5
x
=
−
16
−
10
x
=
−26
÷
13
x
=
−2
(14)
−3
x
−
7
=
6
x
+
6
x
−
37
−3
x
−
6
x
−
6
x
=
−
37
+
7
x
=
−30
÷
(
−15
)
x
=
2