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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)
8
+
10
x
=
−7
x
+
7
x
−
22
(2)
−2
x
+
7
=
−8
x
+
7
x
+
14
(3)
5
x
−
7
=
2
x
+
2
x
−
17
(4)
−9
x
+
7
+
6
x
=
8
x
+
106
(5)
−9
−
2
x
=
−10
x
−
9
x
+
144
(6)
−2
x
+
4
x
−
1
=
−7
x
−
19
(7)
3
x
+
9
x
+
7
=
−8
x
+
107
(8)
6
x
+
10
+
x
=
−3
x
+
70
(9)
−10
x
−
6
x
+
4
=
5
x
−
122
(10)
−8
x
−
7
−
2
x
=
2
x
−
103
(11)
−9
+
6
x
=
−6
x
−
8
x
−
149
(12)
−10
x
+
9
x
−
3
=
−10
x
+
51
(13)
−9
−
2
x
−
9
x
=
−10
x
−
5
(14)
8
x
+
3
x
+
1
=
2
x
+
64
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
8
+
10
x
=
−7
x
+
7
x
−
22
10
x
+
7
x
−
7
x
=
−22
−
8
x
=
−30
÷
10
x
=
−3
(2)
−2
x
+
7
=
−8
x
+
7
x
+
14
−2
x
+
8
x
−
7
x
=
14
−
7
x
=
7
÷
(
−1
)
x
=
−7
(3)
5
x
−
7
=
2
x
+
2
x
−
17
5
x
−
2
x
−
2
x
=
−
17
+
7
x
=
−10
÷
1
x
=
−10
(4)
−9
x
+
7
+
6
x
=
8
x
+
106
−9
x
+
6
x
−
8
x
=
106
−
7
x
=
99
÷
(
−11
)
x
=
−9
(5)
−9
−
2
x
=
−10
x
−
9
x
+
144
−2
x
+
10
x
+
9
x
=
144
+
9
x
=
153
÷
17
x
=
9
(6)
−2
x
+
4
x
−
1
=
−7
x
−
19
−2
x
+
4
x
+
7
x
=
−19
+
1
x
=
−18
÷
9
x
=
−2
(7)
3
x
+
9
x
+
7
=
−8
x
+
107
3
x
+
9
x
+
8
x
=
107
−
7
x
=
100
÷
20
x
=
5
(8)
6
x
+
10
+
x
=
−3
x
+
70
6
x
+
x
+
3
x
=
70
−
10
x
=
60
÷
10
x
=
6
(9)
−10
x
−
6
x
+
4
=
5
x
−
122
−10
x
−
6
x
−
5
x
=
−
122
−
4
x
=
−126
÷
(
−21
)
x
=
6
(10)
−8
x
−
7
−
2
x
=
2
x
−
103
−8
x
−
2
x
−
2
x
=
−103
+
7
x
=
−96
÷
(
−12
)
x
=
8
(11)
−9
+
6
x
=
−6
x
−
8
x
−
149
6
x
+
6
x
+
8
x
=
−149
+
9
x
=
−140
÷
20
x
=
−7
(12)
−10
x
+
9
x
−
3
=
−10
x
+
51
−10
x
+
9
x
+
10
x
=
51
+
3
x
=
54
÷
9
x
=
6
(13)
−9
−
2
x
−
9
x
=
−10
x
−
5
−2
x
−
9
x
+
10
x
=
−5
+
9
x
=
4
÷
(
−1
)
x
=
−4
(14)
8
x
+
3
x
+
1
=
2
x
+
64
8
x
+
3
x
−
2
x
=
64
−
1
x
=
63
÷
9
x
=
7