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©2019 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
3
x
=
192
(2)
2
−5
x
=
−320
(3)
2
−6
x
=
−1
(4)
2
4
x
=
6
(5)
2
−3
x
=
−147
(6)
2
−3
x
=
−147
(7)
2
2
x
=
8
(8)
2
5
x
=
245
(9)
2
−5
x
=
−125
(10)
2
−4
x
=
−7
(11)
2
−3
x
=
−300
(12)
2
−2
x
=
−1
©2019 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
2
3
x
=
192
2
x
=
64
x
=
±
8
(2)
2
−5
x
=
−320
2
x
=
64
x
=
±
8
(3)
2
−6
x
=
−1
2
x
1
=
6
x
6
=
±
6
(4)
2
4
x
=
6
2
x
3
=
2
x
6
=
±
2
(5)
2
−3
x
=
−147
2
x
=
49
x
=
±
7
(6)
2
−3
x
=
−147
2
x
=
49
x
=
±
7
(7)
2
2
x
=
8
2
x
=
4
x
=
±
2
(8)
2
5
x
=
245
2
x
=
49
x
=
±
7
(9)
2
−5
x
=
−125
2
x
=
25
x
=
±
5
(10)
2
−4
x
=
−7
2
x
7
=
4
x
1
7
=
±
2
(11)
2
−3
x
=
−300
2
x
=
100
x
=
±
10
(12)
2
−2
x
=
−1
2
x
1
=
2
x
2
=
±
2