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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)
−2
+
8
x
+
9
x
=
−3
x
+
198
(2)
−5
x
+
8
=
−3
x
+
24
+
6
x
(3)
6
x
−
4
=
3
x
+
20
+
6
x
(4)
−8
+
3
x
+
9
x
=
5
x
−
71
(5)
9
x
−
9
x
+
1
=
−8
x
−
47
(6)
−
x
−
3
−
9
x
=
−6
x
−
39
(7)
−5
x
−
9
=
4
x
+
11
−
7
x
(8)
−7
x
+
10
−
7
x
=
−8
x
+
34
(9)
2
−
7
x
+
3
x
=
4
x
+
34
(10)
−9
+
8
x
−
3
x
=
−5
x
+
81
(11)
−6
x
+
9
x
+
5
=
7
x
+
13
(12)
−4
x
+
1
=
−6
x
−
4
x
−
41
(13)
5
x
−
5
=
8
x
−
15
−
8
x
(14)
4
x
+
10
−
7
x
=
−8
x
−
5
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
−2
+
8
x
+
9
x
=
−3
x
+
198
8
x
+
9
x
+
3
x
=
198
+
2
x
=
200
÷
20
x
=
10
(2)
−5
x
+
8
=
−3
x
+
24
+
6
x
−5
x
+
3
x
−
6
x
=
24
−
8
x
=
16
÷
(
−8
)
x
=
−2
(3)
6
x
−
4
=
3
x
+
20
+
6
x
6
x
−
3
x
−
6
x
=
20
+
4
x
=
24
÷
(
−3
)
x
=
−8
(4)
−8
+
3
x
+
9
x
=
5
x
−
71
3
x
+
9
x
−
5
x
=
−
71
+
8
x
=
−63
÷
7
x
=
−9
(5)
9
x
−
9
x
+
1
=
−8
x
−
47
9
x
−
9
x
+
8
x
=
−
47
−
1
x
=
−48
÷
8
x
=
−6
(6)
−
x
−
3
−
9
x
=
−6
x
−
39
−
x
−
9
x
+
6
x
=
−39
+
3
x
=
−36
÷
(
−4
)
x
=
9
(7)
−5
x
−
9
=
4
x
+
11
−
7
x
−5
x
−
4
x
+
7
x
=
11
+
9
x
=
20
÷
(
−2
)
x
=
−10
(8)
−7
x
+
10
−
7
x
=
−8
x
+
34
−7
x
−
7
x
+
8
x
=
34
−
10
x
=
24
÷
(
−6
)
x
=
−4
(9)
2
−
7
x
+
3
x
=
4
x
+
34
−7
x
+
3
x
−
4
x
=
34
−
2
x
=
32
÷
(
−8
)
x
=
−4
(10)
−9
+
8
x
−
3
x
=
−5
x
+
81
8
x
−
3
x
+
5
x
=
81
+
9
x
=
90
÷
10
x
=
9
(11)
−6
x
+
9
x
+
5
=
7
x
+
13
−6
x
+
9
x
−
7
x
=
13
−
5
x
=
8
÷
(
−4
)
x
=
−2
(12)
−4
x
+
1
=
−6
x
−
4
x
−
41
−4
x
+
6
x
+
4
x
=
−
41
−
1
x
=
−42
÷
6
x
=
−7
(13)
5
x
−
5
=
8
x
−
15
−
8
x
5
x
−
8
x
+
8
x
=
−
15
+
5
x
=
−10
÷
5
x
=
−2
(14)
4
x
+
10
−
7
x
=
−8
x
−
5
4
x
−
7
x
+
8
x
=
−5
−
10
x
=
−15
÷
5
x
=
−3