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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
+
9
x
=
6
x
−
5
x
−
56
(2)
7
−
9
x
=
2
x
−
9
x
+
17
(3)
9
+
5
x
=
7
x
−
x
+
6
(4)
3
x
+
6
+
8
x
=
−6
x
+
159
(5)
−10
x
−
7
+
5
x
=
7
x
−
103
(6)
2
x
+
8
x
+
5
=
−5
x
−
115
(7)
3
x
−
8
=
3
x
+
7
x
+
34
(8)
5
−
4
x
+
7
x
=
−5
x
+
29
(9)
6
x
+
x
+
4
=
−9
x
+
164
(10)
2
x
−
6
=
−2
x
−
x
+
34
(11)
−9
x
−
8
=
−5
x
+
64
+
5
x
(12)
−10
x
+
9
=
−2
x
+
13
−
7
x
(13)
6
x
−
2
+
x
=
5
x
−
10
(14)
−6
−
3
x
−
x
=
x
−
41
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
8
+
9
x
=
6
x
−
5
x
−
56
9
x
−
6
x
+
5
x
=
−56
−
8
x
=
−64
÷
8
x
=
−8
(2)
7
−
9
x
=
2
x
−
9
x
+
17
−9
x
−
2
x
+
9
x
=
17
−
7
x
=
10
÷
(
−2
)
x
=
−5
(3)
9
+
5
x
=
7
x
−
x
+
6
5
x
−
7
x
+
x
=
6
−
9
x
=
−3
÷
(
−1
)
x
=
3
(4)
3
x
+
6
+
8
x
=
−6
x
+
159
3
x
+
8
x
+
6
x
=
159
−
6
x
=
153
÷
17
x
=
9
(5)
−10
x
−
7
+
5
x
=
7
x
−
103
−10
x
+
5
x
−
7
x
=
−103
+
7
x
=
−96
÷
(
−12
)
x
=
8
(6)
2
x
+
8
x
+
5
=
−5
x
−
115
2
x
+
8
x
+
5
x
=
−
115
−
5
x
=
−120
÷
15
x
=
−8
(7)
3
x
−
8
=
3
x
+
7
x
+
34
3
x
−
3
x
−
7
x
=
34
+
8
x
=
42
÷
(
−7
)
x
=
−6
(8)
5
−
4
x
+
7
x
=
−5
x
+
29
−4
x
+
7
x
+
5
x
=
29
−
5
x
=
24
÷
8
x
=
3
(9)
6
x
+
x
+
4
=
−9
x
+
164
6
x
+
x
+
9
x
=
164
−
4
x
=
160
÷
16
x
=
10
(10)
2
x
−
6
=
−2
x
−
x
+
34
2
x
+
2
x
+
x
=
34
+
6
x
=
40
÷
5
x
=
8
(11)
−9
x
−
8
=
−5
x
+
64
+
5
x
−9
x
+
5
x
−
5
x
=
64
+
8
x
=
72
÷
(
−9
)
x
=
−8
(12)
−10
x
+
9
=
−2
x
+
13
−
7
x
−10
x
+
2
x
+
7
x
=
13
−
9
x
=
4
÷
(
−1
)
x
=
−4
(13)
6
x
−
2
+
x
=
5
x
−
10
6
x
+
x
−
5
x
=
−
10
+
2
x
=
−8
÷
2
x
=
−4
(14)
−6
−
3
x
−
x
=
x
−
41
−3
x
−
x
−
x
=
−41
+
6
x
=
−35
÷
(
−5
)
x
=
7