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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
3
x
=
108
(2)
2
2
x
=
162
(3)
2
2
x
=
128
(4)
2
−6
x
=
−3
(5)
2
−4
x
=
−2
(6)
2
−6
x
=
−2
(7)
2
10
x
=
1
(8)
2
−3
x
=
−48
(9)
2
5
x
=
245
(10)
2
−6
x
=
−1
(11)
2
−3
x
=
−192
(12)
2
3
x
=
48
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
2
3
x
=
108
2
x
=
36
x
=
±
6
(2)
2
2
x
=
162
2
x
=
81
x
=
±
9
(3)
2
2
x
=
128
2
x
=
64
x
=
±
8
(4)
2
−6
x
=
−3
2
x
1
=
2
x
2
=
±
2
(5)
2
−4
x
=
−2
2
x
1
=
2
x
2
=
±
2
(6)
2
−6
x
=
−2
2
x
1
=
3
x
3
=
±
3
(7)
2
10
x
=
1
2
x
1
=
10
x
10
=
±
10
(8)
2
−3
x
=
−48
2
x
=
16
x
=
±
4
(9)
2
5
x
=
245
2
x
=
49
x
=
±
7
(10)
2
−6
x
=
−1
2
x
1
=
6
x
6
=
±
6
(11)
2
−3
x
=
−192
2
x
=
64
x
=
±
8
(12)
2
3
x
=
48
2
x
=
16
x
=
±
4