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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)
5
x
+
3
+
9
x
=
8
x
−
27
(2)
−9
+
9
x
=
10
x
−
5
x
−
25
(3)
2
x
+
3
x
−
10
=
8
x
+
2
(4)
−8
x
−
8
=
−2
x
+
x
+
41
(5)
5
x
−
10
=
−3
x
−
6
x
−
150
(6)
−10
x
−
7
x
+
7
=
2
x
+
140
(7)
4
+
7
x
+
6
x
=
10
x
−
23
(8)
4
x
+
5
=
−2
x
−
25
+
3
x
(9)
−10
x
+
8
x
+
5
=
x
+
35
(10)
7
+
9
x
+
10
x
=
−4
x
−
85
(11)
8
x
−
4
=
4
x
+
3
+
3
x
(12)
−4
x
−
6
=
−6
x
−
5
x
+
15
(13)
2
−
9
x
=
−5
x
+
3
x
+
23
(14)
−8
x
−
7
=
−10
x
−
10
−
x
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
5
x
+
3
+
9
x
=
8
x
−
27
5
x
+
9
x
−
8
x
=
−
27
−
3
x
=
−30
÷
6
x
=
−5
(2)
−9
+
9
x
=
10
x
−
5
x
−
25
9
x
−
10
x
+
5
x
=
−25
+
9
x
=
−16
÷
4
x
=
−4
(3)
2
x
+
3
x
−
10
=
8
x
+
2
2
x
+
3
x
−
8
x
=
2
+
10
x
=
12
÷
(
−3
)
x
=
−4
(4)
−8
x
−
8
=
−2
x
+
x
+
41
−8
x
+
2
x
−
x
=
41
+
8
x
=
49
÷
(
−7
)
x
=
−7
(5)
5
x
−
10
=
−3
x
−
6
x
−
150
5
x
+
3
x
+
6
x
=
−
150
+
10
x
=
−140
÷
14
x
=
−10
(6)
−10
x
−
7
x
+
7
=
2
x
+
140
−10
x
−
7
x
−
2
x
=
140
−
7
x
=
133
÷
(
−19
)
x
=
−7
(7)
4
+
7
x
+
6
x
=
10
x
−
23
7
x
+
6
x
−
10
x
=
−
23
−
4
x
=
−27
÷
3
x
=
−9
(8)
4
x
+
5
=
−2
x
−
25
+
3
x
4
x
+
2
x
−
3
x
=
−25
−
5
x
=
−30
÷
3
x
=
−10
(9)
−10
x
+
8
x
+
5
=
x
+
35
−10
x
+
8
x
−
x
=
35
−
5
x
=
30
÷
(
−3
)
x
=
−10
(10)
7
+
9
x
+
10
x
=
−4
x
−
85
9
x
+
10
x
+
4
x
=
−85
−
7
x
=
−92
÷
23
x
=
−4
(11)
8
x
−
4
=
4
x
+
3
+
3
x
8
x
−
4
x
−
3
x
=
3
+
4
x
=
7
÷
1
x
=
7
(12)
−4
x
−
6
=
−6
x
−
5
x
+
15
−4
x
+
6
x
+
5
x
=
15
+
6
x
=
21
÷
7
x
=
3
(13)
2
−
9
x
=
−5
x
+
3
x
+
23
−9
x
+
5
x
−
3
x
=
23
−
2
x
=
21
÷
(
−7
)
x
=
−3
(14)
−8
x
−
7
=
−10
x
−
10
−
x
−8
x
+
10
x
+
x
=
−10
+
7
x
=
−3
÷
3
x
=
−1