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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
−
2
=
5
6
(2)
x
−
7
=
0
9
(3)
3
x
+
1
25
=
8
8
(4)
−7
x
+
5
=
−4
4
(5)
6
x
−
7
1
=
10
2
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
8
x
−
2
=
5
6
8
x
−
2
=
30
8
x
=
30
+
2
x
=
4
(2)
x
−
7
=
0
9
x
−
7
=
0
x
=
7
x
=
7
(3)
3
x
+
1
25
=
8
8
3
x
+
1
=
25
3
x
=
25
−
1
x
=
8
(4)
−7
x
+
5
=
−4
4
−7
x
+
5
=
−16
−7
x
=
−16
−
5
x
=
3
(5)
6
x
−
7
1
=
10
2
6
x
−
7
=
5
6
x
=
5
+
7
x
=
2