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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)
−7
x
−
7
+
10
x
=
7
x
+
25
(2)
−3
x
−
9
=
−7
x
+
27
+
10
x
(3)
−10
x
−
7
=
−
x
+
133
+
5
x
(4)
−8
+
6
x
−
10
x
=
−5
x
−
11
(5)
5
x
−
2
x
−
10
=
8
x
+
30
(6)
−
x
−
9
=
−4
x
+
11
−
x
(7)
−4
+
10
x
=
9
x
−
3
x
−
20
(8)
−5
x
+
6
=
x
−
5
x
+
10
(9)
8
x
+
8
x
−
8
=
9
x
+
6
(10)
10
x
−
x
+
10
=
−7
x
+
90
(11)
−6
x
−
10
x
−
1
=
−10
x
+
47
(12)
9
x
+
2
=
−5
x
+
x
+
80
(13)
4
x
−
1
=
−6
x
−
13
+
8
x
(14)
−5
+
8
x
=
−3
x
+
8
x
+
13
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
−7
x
−
7
+
10
x
=
7
x
+
25
−7
x
+
10
x
−
7
x
=
25
+
7
x
=
32
÷
(
−4
)
x
=
−8
(2)
−3
x
−
9
=
−7
x
+
27
+
10
x
−3
x
+
7
x
−
10
x
=
27
+
9
x
=
36
÷
(
−6
)
x
=
−6
(3)
−10
x
−
7
=
−
x
+
133
+
5
x
−10
x
+
x
−
5
x
=
133
+
7
x
=
140
÷
(
−14
)
x
=
−10
(4)
−8
+
6
x
−
10
x
=
−5
x
−
11
6
x
−
10
x
+
5
x
=
−
11
+
8
x
=
−3
÷
1
x
=
−3
(5)
5
x
−
2
x
−
10
=
8
x
+
30
5
x
−
2
x
−
8
x
=
30
+
10
x
=
40
÷
(
−5
)
x
=
−8
(6)
−
x
−
9
=
−4
x
+
11
−
x
−
x
+
4
x
+
x
=
11
+
9
x
=
20
÷
4
x
=
5
(7)
−4
+
10
x
=
9
x
−
3
x
−
20
10
x
−
9
x
+
3
x
=
−20
+
4
x
=
−16
÷
4
x
=
−4
(8)
−5
x
+
6
=
x
−
5
x
+
10
−5
x
−
x
+
5
x
=
10
−
6
x
=
4
÷
(
−1
)
x
=
−4
(9)
8
x
+
8
x
−
8
=
9
x
+
6
8
x
+
8
x
−
9
x
=
6
+
8
x
=
14
÷
7
x
=
2
(10)
10
x
−
x
+
10
=
−7
x
+
90
10
x
−
x
+
7
x
=
90
−
10
x
=
80
÷
16
x
=
5
(11)
−6
x
−
10
x
−
1
=
−10
x
+
47
−6
x
−
10
x
+
10
x
=
47
+
1
x
=
48
÷
(
−6
)
x
=
−8
(12)
9
x
+
2
=
−5
x
+
x
+
80
9
x
+
5
x
−
x
=
80
−
2
x
=
78
÷
13
x
=
6
(13)
4
x
−
1
=
−6
x
−
13
+
8
x
4
x
+
6
x
−
8
x
=
−
13
+
1
x
=
−12
÷
2
x
=
−6
(14)
−5
+
8
x
=
−3
x
+
8
x
+
13
8
x
+
3
x
−
8
x
=
13
+
5
x
=
18
÷
3
x
=
6