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©2025 数学クラブ http://sugaku.club/
月 日（ ）
● 次の方程式を解きなさい
[0E3-00]
(1)
−1
＋
10
x
=
53
−
8
x
(2)
−8
−
3
x
=
10
−
6
x
(3)
−4
＋
7
x
=
86
−
8
x
(4)
−7
x
−
8
=
−10
x
−
11
(5)
−4
−
8
x
=
−7
x
−
14
(6)
−7
x
＋
6
=
−4
x
＋
9
(7)
4
＋
10
x
=
4
x
−
20
(8)
2
x
＋
6
=
−
x
(9)
4
x
−
10
=
−
x
−
35
(10)
−7
x
−
7
=
−91
＋
7
x
(11)
10
x
＋
7
=
−7
x
−
95
(12)
−10
x
＋
6
=
96
＋
8
x
(13)
−9
x
−
3
=
−131
＋
7
x
(14)
−1
−
6
x
=
−28
−
9
x
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
−1
＋
10
x
=
53
−
8
x
10
x
＋
8
x
=
53
＋
1
x
=
54
÷
18
x
=
3
(2)
−8
−
3
x
=
10
−
6
x
−3
x
＋
6
x
=
10
＋
8
x
=
18
÷
3
x
=
6
(3)
−4
＋
7
x
=
86
−
8
x
7
x
＋
8
x
=
86
＋
4
x
=
90
÷
15
x
=
6
(4)
−7
x
−
8
=
−10
x
−
11
−7
x
＋
10
x
=
−11
＋
8
x
=
−3
÷
3
x
=
−1
(5)
−4
−
8
x
=
−7
x
−
14
−8
x
＋
7
x
=
−14
＋
4
x
=
−10
÷
(
−1
)
x
=
10
(6)
−7
x
＋
6
=
−4
x
＋
9
−7
x
＋
4
x
=
9
−
6
x
=
3
÷
(
−3
)
x
=
−1
(7)
4
＋
10
x
=
4
x
−
20
10
x
−
4
x
=
−20
−
4
x
=
−24
÷
6
x
=
−4
(8)
2
x
＋
6
=
−
x
2
x
＋
x
=
−
6
x
=
−6
÷
3
x
=
−2
(9)
4
x
−
10
=
−
x
−
35
4
x
＋
x
=
−35
＋
10
x
=
−25
÷
5
x
=
−5
(10)
−7
x
−
7
=
−91
＋
7
x
−7
x
−
7
x
=
−91
＋
7
x
=
−84
÷
(
−14
)
x
=
6
(11)
10
x
＋
7
=
−7
x
−
95
10
x
＋
7
x
=
−
95
−
7
x
=
−102
÷
17
x
=
−6
(12)
−10
x
＋
6
=
96
＋
8
x
−10
x
−
8
x
=
96
−
6
x
=
90
÷
(
−18
)
x
=
−5
(13)
−9
x
−
3
=
−131
＋
7
x
−9
x
−
7
x
=
−131
＋
3
x
=
−128
÷
(
−16
)
x
=
8
(14)
−1
−
6
x
=
−28
−
9
x
−6
x
＋
9
x
=
−28
＋
1
x
=
−27
÷
3
x
=
−9