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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)
3
x
+
8
=
−10
x
+
8
x
+
58
(2)
−7
+
3
x
=
−2
x
−
8
x
−
72
(3)
1
+
2
x
−
10
x
=
−
x
+
64
(4)
−10
x
+
1
−
8
x
=
−2
x
−
143
(5)
−7
x
+
6
=
−9
x
−
2
x
−
6
(6)
9
x
−
10
x
−
9
=
−6
x
+
6
(7)
−5
x
+
7
+
10
x
=
4
x
+
2
(8)
−3
x
+
3
x
−
7
=
8
x
+
41
(9)
5
+
8
x
=
4
x
+
7
x
−
4
(10)
5
x
−
2
=
−5
x
+
169
−
9
x
(11)
4
x
+
4
x
−
3
=
5
x
−
24
(12)
1
−
7
x
=
−3
x
+
3
x
−
62
(13)
−5
x
+
10
x
+
2
=
−2
x
+
23
(14)
8
−
8
x
+
5
x
=
−10
x
+
15
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
3
x
+
8
=
−10
x
+
8
x
+
58
3
x
+
10
x
−
8
x
=
58
−
8
x
=
50
÷
5
x
=
10
(2)
−7
+
3
x
=
−2
x
−
8
x
−
72
3
x
+
2
x
+
8
x
=
−72
+
7
x
=
−65
÷
13
x
=
−5
(3)
1
+
2
x
−
10
x
=
−
x
+
64
2
x
−
10
x
+
x
=
64
−
1
x
=
63
÷
(
−7
)
x
=
−9
(4)
−10
x
+
1
−
8
x
=
−2
x
−
143
−10
x
−
8
x
+
2
x
=
−
143
−
1
x
=
−144
÷
(
−16
)
x
=
9
(5)
−7
x
+
6
=
−9
x
−
2
x
−
6
−7
x
+
9
x
+
2
x
=
−6
−
6
x
=
−12
÷
4
x
=
−3
(6)
9
x
−
10
x
−
9
=
−6
x
+
6
9
x
−
10
x
+
6
x
=
6
+
9
x
=
15
÷
5
x
=
3
(7)
−5
x
+
7
+
10
x
=
4
x
+
2
−5
x
+
10
x
−
4
x
=
2
−
7
x
=
−5
÷
1
x
=
−5
(8)
−3
x
+
3
x
−
7
=
8
x
+
41
−3
x
+
3
x
−
8
x
=
41
+
7
x
=
48
÷
(
−8
)
x
=
−6
(9)
5
+
8
x
=
4
x
+
7
x
−
4
8
x
−
4
x
−
7
x
=
−
4
−
5
x
=
−9
÷
(
−3
)
x
=
3
(10)
5
x
−
2
=
−5
x
+
169
−
9
x
5
x
+
5
x
+
9
x
=
169
+
2
x
=
171
÷
19
x
=
9
(11)
4
x
+
4
x
−
3
=
5
x
−
24
4
x
+
4
x
−
5
x
=
−24
+
3
x
=
−21
÷
3
x
=
−7
(12)
1
−
7
x
=
−3
x
+
3
x
−
62
−7
x
+
3
x
−
3
x
=
−62
−
1
x
=
−63
÷
(
−7
)
x
=
9
(13)
−5
x
+
10
x
+
2
=
−2
x
+
23
−5
x
+
10
x
+
2
x
=
23
−
2
x
=
21
÷
7
x
=
3
(14)
8
−
8
x
+
5
x
=
−10
x
+
15
−8
x
+
5
x
+
10
x
=
15
−
8
x
=
7
÷
7
x
=
1