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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
[0E7-00]
(1)
−8
x
+
7
73
=
−
3
3
(2)
10
x
+
4
13
=
−
8
4
(3)
2
x
+
5
7
=
4
4
(4)
9
x
+
1
55
=
6
6
(5)
2
x
+
6
16
=
9
9
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
−8
x
+
7
73
=
−
3
3
−8
x
+
7
=
−73
−8
x
=
−73
−
7
x
=
10
(2)
10
x
+
4
13
=
−
8
4
10
x
+
4
=
−26
10
x
=
−26
−
4
x
=
−3
(3)
2
x
+
5
7
=
4
4
2
x
+
5
=
7
2
x
=
7
−
5
x
=
1
(4)
9
x
+
1
55
=
6
6
9
x
+
1
=
55
9
x
=
55
−
1
x
=
6
(5)
2
x
+
6
16
=
9
9
2
x
+
6
=
16
2
x
=
16
−
6
x
=
5