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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)
−7
x
+
1
+
8
x
=
7
x
+
7
(2)
−10
x
+
4
x
+
5
=
−3
x
+
20
(3)
−10
x
+
2
=
3
x
−
4
x
−
43
(4)
−8
+
7
x
=
−2
x
+
2
x
−
43
(5)
−2
x
+
2
−
3
x
=
10
x
+
62
(6)
−8
x
−
1
=
9
x
−
43
−
3
x
(7)
−5
+
5
x
=
3
x
−
4
x
−
53
(8)
−7
x
−
4
=
−2
x
−
3
x
+
14
(9)
10
x
+
6
=
6
x
+
22
+
8
x
(10)
8
−
10
x
−
10
x
=
−7
x
−
83
(11)
−7
x
−
10
x
+
10
=
8
x
+
35
(12)
−5
−
5
x
=
−9
x
−
4
x
+
43
(13)
10
x
+
3
+
8
x
=
−
x
−
130
(14)
−4
x
+
6
=
−5
x
−
9
+
4
x
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
−7
x
+
1
+
8
x
=
7
x
+
7
−7
x
+
8
x
−
7
x
=
7
−
1
x
=
6
÷
(
−6
)
x
=
−1
(2)
−10
x
+
4
x
+
5
=
−3
x
+
20
−10
x
+
4
x
+
3
x
=
20
−
5
x
=
15
÷
(
−3
)
x
=
−5
(3)
−10
x
+
2
=
3
x
−
4
x
−
43
−10
x
−
3
x
+
4
x
=
−43
−
2
x
=
−45
÷
(
−9
)
x
=
5
(4)
−8
+
7
x
=
−2
x
+
2
x
−
43
7
x
+
2
x
−
2
x
=
−43
+
8
x
=
−35
÷
7
x
=
−5
(5)
−2
x
+
2
−
3
x
=
10
x
+
62
−2
x
−
3
x
−
10
x
=
62
−
2
x
=
60
÷
(
−15
)
x
=
−4
(6)
−8
x
−
1
=
9
x
−
43
−
3
x
−8
x
−
9
x
+
3
x
=
−43
+
1
x
=
−42
÷
(
−14
)
x
=
3
(7)
−5
+
5
x
=
3
x
−
4
x
−
53
5
x
−
3
x
+
4
x
=
−53
+
5
x
=
−48
÷
6
x
=
−8
(8)
−7
x
−
4
=
−2
x
−
3
x
+
14
−7
x
+
2
x
+
3
x
=
14
+
4
x
=
18
÷
(
−2
)
x
=
−9
(9)
10
x
+
6
=
6
x
+
22
+
8
x
10
x
−
6
x
−
8
x
=
22
−
6
x
=
16
÷
(
−4
)
x
=
−4
(10)
8
−
10
x
−
10
x
=
−7
x
−
83
−10
x
−
10
x
+
7
x
=
−
83
−
8
x
=
−91
÷
(
−13
)
x
=
7
(11)
−7
x
−
10
x
+
10
=
8
x
+
35
−7
x
−
10
x
−
8
x
=
35
−
10
x
=
25
÷
(
−25
)
x
=
−1
(12)
−5
−
5
x
=
−9
x
−
4
x
+
43
−5
x
+
9
x
+
4
x
=
43
+
5
x
=
48
÷
8
x
=
6
(13)
10
x
+
3
+
8
x
=
−
x
−
130
10
x
+
8
x
+
x
=
−
130
−
3
x
=
−133
÷
19
x
=
−7
(14)
−4
x
+
6
=
−5
x
−
9
+
4
x
−4
x
+
5
x
−
4
x
=
−
9
−
6
x
=
−15
÷
(
−3
)
x
=
5