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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
−
7
=
8
x
＋
35
＋
3
x
(2)
7
x
−
3
=
−8
x
−
6
x
−
213
(3)
−9
−
2
x
＋
x
=
−3
x
−
27
(4)
−8
x
−
x
＋
4
=
−10
x
＋
2
(5)
4
x
＋
7
x
＋
3
=
−3
x
−
53
(6)
10
＋
4
x
=
5
x
＋
10
x
＋
109
(7)
3
x
＋
1
＋
5
x
=
7
x
＋
10
(8)
7
x
−
8
−
6
x
=
−2
x
−
20
(9)
−7
x
−
6
x
−
10
=
−10
x
＋
5
(10)
1
−
7
x
=
7
x
−
6
x
＋
9
(11)
10
＋
5
x
＋
10
x
=
−5
x
＋
150
(12)
−8
x
＋
5
=
5
x
−
10
x
＋
17
(13)
−6
＋
7
x
=
−7
x
＋
x
＋
20
(14)
−7
x
−
5
x
＋
4
=
−5
x
＋
11
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
5
x
−
7
=
8
x
＋
35
＋
3
x
5
x
−
8
x
−
3
x
=
35
＋
7
x
=
42
÷
(
−6
)
x
=
−7
(2)
7
x
−
3
=
−8
x
−
6
x
−
213
7
x
＋
8
x
＋
6
x
=
−
213
＋
3
x
=
−210
÷
21
x
=
−10
(3)
−9
−
2
x
＋
x
=
−3
x
−
27
−2
x
＋
x
＋
3
x
=
−
27
＋
9
x
=
−18
÷
2
x
=
−9
(4)
−8
x
−
x
＋
4
=
−10
x
＋
2
−8
x
−
x
＋
10
x
=
2
−
4
x
=
−2
÷
1
x
=
−2
(5)
4
x
＋
7
x
＋
3
=
−3
x
−
53
4
x
＋
7
x
＋
3
x
=
−53
−
3
x
=
−56
÷
14
x
=
−4
(6)
10
＋
4
x
=
5
x
＋
10
x
＋
109
4
x
−
5
x
−
10
x
=
109
−
10
x
=
99
÷
(
−11
)
x
=
−9
(7)
3
x
＋
1
＋
5
x
=
7
x
＋
10
3
x
＋
5
x
−
7
x
=
10
−
1
x
=
9
÷
1
x
=
9
(8)
7
x
−
8
−
6
x
=
−2
x
−
20
7
x
−
6
x
＋
2
x
=
−20
＋
8
x
=
−12
÷
3
x
=
−4
(9)
−7
x
−
6
x
−
10
=
−10
x
＋
5
−7
x
−
6
x
＋
10
x
=
5
＋
10
x
=
15
÷
(
−3
)
x
=
−5
(10)
1
−
7
x
=
7
x
−
6
x
＋
9
−7
x
−
7
x
＋
6
x
=
9
−
1
x
=
8
÷
(
−8
)
x
=
−1
(11)
10
＋
5
x
＋
10
x
=
−5
x
＋
150
5
x
＋
10
x
＋
5
x
=
150
−
10
x
=
140
÷
20
x
=
7
(12)
−8
x
＋
5
=
5
x
−
10
x
＋
17
−8
x
−
5
x
＋
10
x
=
17
−
5
x
=
12
÷
(
−3
)
x
=
−4
(13)
−6
＋
7
x
=
−7
x
＋
x
＋
20
7
x
＋
7
x
−
x
=
20
＋
6
x
=
26
÷
13
x
=
2
(14)
−7
x
−
5
x
＋
4
=
−5
x
＋
11
−7
x
−
5
x
＋
5
x
=
11
−
4
x
=
7
÷
(
−7
)
x
=
−1