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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
+
7
x
=
−3
x
−
x
+
39
(2)
−6
x
−
5
x
−
4
=
−4
x
−
39
(3)
9
x
−
3
=
4
x
−
45
−
9
x
(4)
−7
x
−
3
x
+
9
=
10
x
+
29
(5)
9
x
+
8
+
9
x
=
3
x
−
52
(6)
−8
+
8
x
=
9
x
−
4
x
+
1
(7)
4
−
8
x
=
7
x
+
2
x
+
157
(8)
10
+
7
x
=
−8
x
+
9
x
−
32
(9)
−5
x
−
10
=
−4
x
+
5
x
−
46
(10)
−5
x
+
9
=
−9
x
+
81
−
4
x
(11)
−3
x
−
10
=
−9
x
−
16
+
5
x
(12)
2
x
+
9
=
−4
x
+
9
x
+
39
(13)
5
x
+
10
=
3
x
+
2
+
x
(14)
−7
x
−
1
=
−7
x
+
15
−
2
x
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
−5
+
7
x
=
−3
x
−
x
+
39
7
x
+
3
x
+
x
=
39
+
5
x
=
44
÷
11
x
=
4
(2)
−6
x
−
5
x
−
4
=
−4
x
−
39
−6
x
−
5
x
+
4
x
=
−39
+
4
x
=
−35
÷
(
−7
)
x
=
5
(3)
9
x
−
3
=
4
x
−
45
−
9
x
9
x
−
4
x
+
9
x
=
−45
+
3
x
=
−42
÷
14
x
=
−3
(4)
−7
x
−
3
x
+
9
=
10
x
+
29
−7
x
−
3
x
−
10
x
=
29
−
9
x
=
20
÷
(
−20
)
x
=
−1
(5)
9
x
+
8
+
9
x
=
3
x
−
52
9
x
+
9
x
−
3
x
=
−52
−
8
x
=
−60
÷
15
x
=
−4
(6)
−8
+
8
x
=
9
x
−
4
x
+
1
8
x
−
9
x
+
4
x
=
1
+
8
x
=
9
÷
3
x
=
3
(7)
4
−
8
x
=
7
x
+
2
x
+
157
−8
x
−
7
x
−
2
x
=
157
−
4
x
=
153
÷
(
−17
)
x
=
−9
(8)
10
+
7
x
=
−8
x
+
9
x
−
32
7
x
+
8
x
−
9
x
=
−
32
−
10
x
=
−42
÷
6
x
=
−7
(9)
−5
x
−
10
=
−4
x
+
5
x
−
46
−5
x
+
4
x
−
5
x
=
−
46
+
10
x
=
−36
÷
(
−6
)
x
=
6
(10)
−5
x
+
9
=
−9
x
+
81
−
4
x
−5
x
+
9
x
+
4
x
=
81
−
9
x
=
72
÷
8
x
=
9
(11)
−3
x
−
10
=
−9
x
−
16
+
5
x
−3
x
+
9
x
−
5
x
=
−
16
+
10
x
=
−6
÷
1
x
=
−6
(12)
2
x
+
9
=
−4
x
+
9
x
+
39
2
x
+
4
x
−
9
x
=
39
−
9
x
=
30
÷
(
−3
)
x
=
−10
(13)
5
x
+
10
=
3
x
+
2
+
x
5
x
−
3
x
−
x
=
2
−
10
x
=
−8
÷
1
x
=
−8
(14)
−7
x
−
1
=
−7
x
+
15
−
2
x
−7
x
+
7
x
+
2
x
=
15
+
1
x
=
16
÷
2
x
=
8