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©2025 数学クラブ http://sugaku.club/
月 日（ ）
● 次の方程式を解きなさい
[210-00]
(1)
2
−2
x
=
−32
(2)
2
7
x
=
1
(3)
2
−3
x
=
−192
(4)
2
5
x
=
125
(5)
2
−3
x
=
−75
(6)
2
−5
x
=
−125
(7)
2
6
x
=
8
(8)
2
−2
x
=
−4
(9)
2
−7
x
=
−7
(10)
2
x
=
8
(11)
2
3
x
=
48
(12)
2
5
x
=
80
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
2
−2
x
=
−32
2
x
=
16
x
=
±
4
(2)
2
7
x
=
1
2
x
1
=
7
x
7
=
±
7
(3)
2
−3
x
=
−192
2
x
=
64
x
=
±
8
(4)
2
5
x
=
125
2
x
=
25
x
=
±
5
(5)
2
−3
x
=
−75
2
x
=
25
x
=
±
5
(6)
2
−5
x
=
−125
2
x
=
25
x
=
±
5
(7)
2
6
x
=
8
2
x
4
=
3
x
2
3
=
±
3
(8)
2
−2
x
=
−4
2
x
=
2
x
2
=
±
(9)
2
−7
x
=
−7
2
x
=
1
x
=
±
1
(10)
2
x
=
8
x
2
=
±
2
(11)
2
3
x
=
48
2
x
=
16
x
=
±
4
(12)
2
5
x
=
80
2
x
=
16
x
=
±
4