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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)
−
x
+
10
+
8
x
=
−8
x
+
145
(2)
−2
x
−
5
+
7
x
=
2
x
−
20
(3)
3
−
4
x
=
−
x
+
10
x
+
29
(4)
−7
+
5
x
=
−8
x
+
4
x
−
70
(5)
−9
x
−
8
=
7
x
+
18
+
10
x
(6)
−3
+
3
x
=
3
x
+
6
x
−
15
(7)
−9
x
−
7
=
9
x
+
x
+
107
(8)
−4
x
−
8
=
10
x
+
4
x
−
116
(9)
−7
+
9
x
=
9
x
+
7
x
+
63
(10)
6
x
+
4
−
10
x
=
−
x
+
13
(11)
4
x
+
10
=
x
+
5
x
+
8
(12)
−3
x
−
8
=
−3
x
+
72
−
10
x
(13)
−6
+
6
x
+
3
x
=
−6
x
+
9
(14)
5
x
+
4
=
9
x
−
24
−
8
x
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
−
x
+
10
+
8
x
=
−8
x
+
145
−
x
+
8
x
+
8
x
=
145
−
10
x
=
135
÷
15
x
=
9
(2)
−2
x
−
5
+
7
x
=
2
x
−
20
−2
x
+
7
x
−
2
x
=
−20
+
5
x
=
−15
÷
3
x
=
−5
(3)
3
−
4
x
=
−
x
+
10
x
+
29
−4
x
+
x
−
10
x
=
29
−
3
x
=
26
÷
(
−13
)
x
=
−2
(4)
−7
+
5
x
=
−8
x
+
4
x
−
70
5
x
+
8
x
−
4
x
=
−
70
+
7
x
=
−63
÷
9
x
=
−7
(5)
−9
x
−
8
=
7
x
+
18
+
10
x
−9
x
−
7
x
−
10
x
=
18
+
8
x
=
26
÷
(
−26
)
x
=
−1
(6)
−3
+
3
x
=
3
x
+
6
x
−
15
3
x
−
3
x
−
6
x
=
−15
+
3
x
=
−12
÷
(
−6
)
x
=
2
(7)
−9
x
−
7
=
9
x
+
x
+
107
−9
x
−
9
x
−
x
=
107
+
7
x
=
114
÷
(
−19
)
x
=
−6
(8)
−4
x
−
8
=
10
x
+
4
x
−
116
−4
x
−
10
x
−
4
x
=
−
116
+
8
x
=
−108
÷
(
−18
)
x
=
6
(9)
−7
+
9
x
=
9
x
+
7
x
+
63
9
x
−
9
x
−
7
x
=
63
+
7
x
=
70
÷
(
−7
)
x
=
−10
(10)
6
x
+
4
−
10
x
=
−
x
+
13
6
x
−
10
x
+
x
=
13
−
4
x
=
9
÷
(
−3
)
x
=
−3
(11)
4
x
+
10
=
x
+
5
x
+
8
4
x
−
x
−
5
x
=
8
−
10
x
=
−2
÷
(
−2
)
x
=
1
(12)
−3
x
−
8
=
−3
x
+
72
−
10
x
−3
x
+
3
x
+
10
x
=
72
+
8
x
=
80
÷
10
x
=
8
(13)
−6
+
6
x
+
3
x
=
−6
x
+
9
6
x
+
3
x
+
6
x
=
9
+
6
x
=
15
÷
15
x
=
1
(14)
5
x
+
4
=
9
x
−
24
−
8
x
5
x
−
9
x
+
8
x
=
−24
−
4
x
=
−28
÷
4
x
=
−7