［文字サイズの変更］
▼
▲
©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)
−9
＋
5
x
=
−33
−
x
(2)
−4
x
＋
2
=
−8
x
＋
26
(3)
−9
x
＋
9
=
−7
x
＋
25
(4)
−10
x
−
7
=
−71
−
2
x
(5)
−7
x
＋
3
=
x
＋
51
(6)
4
＋
2
x
=
−10
x
＋
100
(7)
10
−
3
x
=
−2
x
＋
1
(8)
3
x
−
10
=
−
x
−
2
(9)
7
x
＋
5
=
75
−
7
x
(10)
10
x
−
10
=
−5
x
＋
80
(11)
5
x
＋
3
=
12
＋
2
x
(12)
3
＋
4
x
=
13
＋
2
x
(13)
9
−
2
x
=
39
−
8
x
(14)
6
−
2
x
=
−7
x
−
4
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
−9
＋
5
x
=
−33
−
x
5
x
＋
x
=
−33
＋
9
x
=
−24
÷
6
x
=
−4
(2)
−4
x
＋
2
=
−8
x
＋
26
−4
x
＋
8
x
=
26
−
2
x
=
24
÷
4
x
=
6
(3)
−9
x
＋
9
=
−7
x
＋
25
−9
x
＋
7
x
=
25
−
9
x
=
16
÷
(
−2
)
x
=
−8
(4)
−10
x
−
7
=
−71
−
2
x
−10
x
＋
2
x
=
−71
＋
7
x
=
−64
÷
(
−8
)
x
=
8
(5)
−7
x
＋
3
=
x
＋
51
−7
x
−
x
=
51
−
3
x
=
48
÷
(
−8
)
x
=
−6
(6)
4
＋
2
x
=
−10
x
＋
100
2
x
＋
10
x
=
100
−
4
x
=
96
÷
12
x
=
8
(7)
10
−
3
x
=
−2
x
＋
1
−3
x
＋
2
x
=
1
−
10
x
=
−9
÷
(
−1
)
x
=
9
(8)
3
x
−
10
=
−
x
−
2
3
x
＋
x
=
−2
＋
10
x
=
8
÷
4
x
=
2
(9)
7
x
＋
5
=
75
−
7
x
7
x
＋
7
x
=
75
−
5
x
=
70
÷
14
x
=
5
(10)
10
x
−
10
=
−5
x
＋
80
10
x
＋
5
x
=
80
＋
10
x
=
90
÷
15
x
=
6
(11)
5
x
＋
3
=
12
＋
2
x
5
x
−
2
x
=
12
−
3
x
=
9
÷
3
x
=
3
(12)
3
＋
4
x
=
13
＋
2
x
4
x
−
2
x
=
13
−
3
x
=
10
÷
2
x
=
5
(13)
9
−
2
x
=
39
−
8
x
−2
x
＋
8
x
=
39
−
9
x
=
30
÷
6
x
=
5
(14)
6
−
2
x
=
−7
x
−
4
−2
x
＋
7
x
=
−
4
−
6
x
=
−10
÷
5
x
=
−2