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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)
−2
+
6
x
+
x
=
4
x
−
17
(2)
−5
−
5
x
+
9
x
=
−10
x
+
65
(3)
−2
x
−
8
x
+
4
=
9
x
+
99
(4)
−
x
−
6
x
−
3
=
5
x
+
93
(5)
−10
+
4
x
=
4
x
+
4
x
−
30
(6)
3
x
+
9
=
4
x
+
12
−
4
x
(7)
7
+
10
x
=
x
−
10
x
−
31
(8)
5
x
−
6
+
x
=
8
x
+
6
(9)
10
+
5
x
=
−8
x
+
2
x
+
109
(10)
−8
x
+
10
x
+
6
=
3
x
+
2
(11)
−7
−
10
x
=
−4
x
+
6
x
+
113
(12)
5
x
−
4
x
−
10
=
7
x
−
4
(13)
10
x
+
6
x
−
8
=
6
x
+
92
(14)
10
x
+
4
=
10
x
−
9
x
+
22
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
−2
+
6
x
+
x
=
4
x
−
17
6
x
+
x
−
4
x
=
−
17
+
2
x
=
−15
÷
3
x
=
−5
(2)
−5
−
5
x
+
9
x
=
−10
x
+
65
−5
x
+
9
x
+
10
x
=
65
+
5
x
=
70
÷
14
x
=
5
(3)
−2
x
−
8
x
+
4
=
9
x
+
99
−2
x
−
8
x
−
9
x
=
99
−
4
x
=
95
÷
(
−19
)
x
=
−5
(4)
−
x
−
6
x
−
3
=
5
x
+
93
−
x
−
6
x
−
5
x
=
93
+
3
x
=
96
÷
(
−12
)
x
=
−8
(5)
−10
+
4
x
=
4
x
+
4
x
−
30
4
x
−
4
x
−
4
x
=
−30
+
10
x
=
−20
÷
(
−4
)
x
=
5
(6)
3
x
+
9
=
4
x
+
12
−
4
x
3
x
−
4
x
+
4
x
=
12
−
9
x
=
3
÷
3
x
=
1
(7)
7
+
10
x
=
x
−
10
x
−
31
10
x
−
x
+
10
x
=
−31
−
7
x
=
−38
÷
19
x
=
−2
(8)
5
x
−
6
+
x
=
8
x
+
6
5
x
+
x
−
8
x
=
6
+
6
x
=
12
÷
(
−2
)
x
=
−6
(9)
10
+
5
x
=
−8
x
+
2
x
+
109
5
x
+
8
x
−
2
x
=
109
−
10
x
=
99
÷
11
x
=
9
(10)
−8
x
+
10
x
+
6
=
3
x
+
2
−8
x
+
10
x
−
3
x
=
2
−
6
x
=
−4
÷
(
−1
)
x
=
4
(11)
−7
−
10
x
=
−4
x
+
6
x
+
113
−10
x
+
4
x
−
6
x
=
113
+
7
x
=
120
÷
(
−12
)
x
=
−10
(12)
5
x
−
4
x
−
10
=
7
x
−
4
5
x
−
4
x
−
7
x
=
−
4
+
10
x
=
6
÷
(
−6
)
x
=
−1
(13)
10
x
+
6
x
−
8
=
6
x
+
92
10
x
+
6
x
−
6
x
=
92
+
8
x
=
100
÷
10
x
=
10
(14)
10
x
+
4
=
10
x
−
9
x
+
22
10
x
−
10
x
+
9
x
=
22
−
4
x
=
18
÷
9
x
=
2