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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)
−1
−
10
x
=
7
x
−
9
x
−
81
(2)
−1
−
6
x
=
3
x
＋
10
x
＋
56
(3)
6
−
6
x
−
4
x
=
x
＋
94
(4)
−7
x
＋
6
=
−7
x
−
6
−
3
x
(5)
2
x
＋
7
x
＋
3
=
−3
x
−
45
(6)
5
x
＋
7
=
6
x
＋
3
x
＋
43
(7)
−10
x
−
4
=
−2
x
＋
9
x
＋
13
(8)
2
x
＋
1
=
−3
x
＋
5
＋
3
x
(9)
3
x
−
4
=
−6
x
＋
36
＋
5
x
(10)
−9
x
＋
7
x
＋
8
=
4
x
−
22
(11)
3
x
＋
1
＋
6
x
=
−3
x
−
119
(12)
−8
−
9
x
＋
10
x
=
−5
x
＋
4
(13)
−6
x
＋
2
=
x
＋
1
−
8
x
(14)
−
x
＋
7
=
7
x
＋
7
x
＋
22
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
−1
−
10
x
=
7
x
−
9
x
−
81
−10
x
−
7
x
＋
9
x
=
−81
＋
1
x
=
−80
÷
(
−8
)
x
=
10
(2)
−1
−
6
x
=
3
x
＋
10
x
＋
56
−6
x
−
3
x
−
10
x
=
56
＋
1
x
=
57
÷
(
−19
)
x
=
−3
(3)
6
−
6
x
−
4
x
=
x
＋
94
−6
x
−
4
x
−
x
=
94
−
6
x
=
88
÷
(
−11
)
x
=
−8
(4)
−7
x
＋
6
=
−7
x
−
6
−
3
x
−7
x
＋
7
x
＋
3
x
=
−6
−
6
x
=
−12
÷
3
x
=
−4
(5)
2
x
＋
7
x
＋
3
=
−3
x
−
45
2
x
＋
7
x
＋
3
x
=
−45
−
3
x
=
−48
÷
12
x
=
−4
(6)
5
x
＋
7
=
6
x
＋
3
x
＋
43
5
x
−
6
x
−
3
x
=
43
−
7
x
=
36
÷
(
−4
)
x
=
−9
(7)
−10
x
−
4
=
−2
x
＋
9
x
＋
13
−10
x
＋
2
x
−
9
x
=
13
＋
4
x
=
17
÷
(
−17
)
x
=
−1
(8)
2
x
＋
1
=
−3
x
＋
5
＋
3
x
2
x
＋
3
x
−
3
x
=
5
−
1
x
=
4
÷
2
x
=
2
(9)
3
x
−
4
=
−6
x
＋
36
＋
5
x
3
x
＋
6
x
−
5
x
=
36
＋
4
x
=
40
÷
4
x
=
10
(10)
−9
x
＋
7
x
＋
8
=
4
x
−
22
−9
x
＋
7
x
−
4
x
=
−
22
−
8
x
=
−30
÷
(
−6
)
x
=
5
(11)
3
x
＋
1
＋
6
x
=
−3
x
−
119
3
x
＋
6
x
＋
3
x
=
−
119
−
1
x
=
−120
÷
12
x
=
−10
(12)
−8
−
9
x
＋
10
x
=
−5
x
＋
4
−9
x
＋
10
x
＋
5
x
=
4
＋
8
x
=
12
÷
6
x
=
2
(13)
−6
x
＋
2
=
x
＋
1
−
8
x
−6
x
−
x
＋
8
x
=
1
−
2
x
=
−1
÷
1
x
=
−1
(14)
−
x
＋
7
=
7
x
＋
7
x
＋
22
−
x
−
7
x
−
7
x
=
22
−
7
x
=
15
÷
(
−15
)
x
=
−1