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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)
3
x
−
1
＋
4
x
=
−5
x
−
109
(2)
−
x
−
4
=
−7
x
＋
8
＋
3
x
(3)
6
x
＋
4
=
3
x
−
16
＋
8
x
(4)
−9
x
＋
9
x
＋
8
=
−9
x
＋
80
(5)
−10
＋
4
x
=
10
x
＋
x
＋
39
(6)
−1
＋
10
x
=
−8
x
＋
8
x
＋
49
(7)
−3
＋
8
x
−
x
=
5
x
−
17
(8)
−4
x
＋
1
=
−8
x
−
4
x
＋
57
(9)
−10
x
＋
8
=
9
x
＋
158
−
4
x
(10)
3
x
＋
3
x
＋
5
=
7
x
＋
6
(11)
6
x
＋
2
=
−10
x
＋
191
−
5
x
(12)
−9
x
−
9
=
−10
x
＋
7
x
＋
39
(13)
9
x
−
1
=
−8
x
−
53
＋
4
x
(14)
−3
x
＋
9
=
x
＋
4
x
＋
17
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
3
x
−
1
＋
4
x
=
−5
x
−
109
3
x
＋
4
x
＋
5
x
=
−
109
＋
1
x
=
−108
÷
12
x
=
−9
(2)
−
x
−
4
=
−7
x
＋
8
＋
3
x
−
x
＋
7
x
−
3
x
=
8
＋
4
x
=
12
÷
3
x
=
4
(3)
6
x
＋
4
=
3
x
−
16
＋
8
x
6
x
−
3
x
−
8
x
=
−16
−
4
x
=
−20
÷
(
−5
)
x
=
4
(4)
−9
x
＋
9
x
＋
8
=
−9
x
＋
80
−9
x
＋
9
x
＋
9
x
=
80
−
8
x
=
72
÷
9
x
=
8
(5)
−10
＋
4
x
=
10
x
＋
x
＋
39
4
x
−
10
x
−
x
=
39
＋
10
x
=
49
÷
(
−7
)
x
=
−7
(6)
−1
＋
10
x
=
−8
x
＋
8
x
＋
49
10
x
＋
8
x
−
8
x
=
49
＋
1
x
=
50
÷
10
x
=
5
(7)
−3
＋
8
x
−
x
=
5
x
−
17
8
x
−
x
−
5
x
=
−17
＋
3
x
=
−14
÷
2
x
=
−7
(8)
−4
x
＋
1
=
−8
x
−
4
x
＋
57
−4
x
＋
8
x
＋
4
x
=
57
−
1
x
=
56
÷
8
x
=
7
(9)
−10
x
＋
8
=
9
x
＋
158
−
4
x
−10
x
−
9
x
＋
4
x
=
158
−
8
x
=
150
÷
(
−15
)
x
=
−10
(10)
3
x
＋
3
x
＋
5
=
7
x
＋
6
3
x
＋
3
x
−
7
x
=
6
−
5
x
=
1
÷
(
−1
)
x
=
−1
(11)
6
x
＋
2
=
−10
x
＋
191
−
5
x
6
x
＋
10
x
＋
5
x
=
191
−
2
x
=
189
÷
21
x
=
9
(12)
−9
x
−
9
=
−10
x
＋
7
x
＋
39
−9
x
＋
10
x
−
7
x
=
39
＋
9
x
=
48
÷
(
−6
)
x
=
−8
(13)
9
x
−
1
=
−8
x
−
53
＋
4
x
9
x
＋
8
x
−
4
x
=
−53
＋
1
x
=
−52
÷
13
x
=
−4
(14)
−3
x
＋
9
=
x
＋
4
x
＋
17
−3
x
−
x
−
4
x
=
17
−
9
x
=
8
÷
(
−8
)
x
=
−1