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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
[210-00]
(1)
2
−3
x
=
−108
(2)
2
−2
x
=
−32
(3)
2
−3
x
=
−1
(4)
2
3
x
=
3
(5)
2
−5
x
=
−180
(6)
2
5
x
=
45
(7)
2
3
x
=
1
(8)
2
7
x
=
5
(9)
2
5
x
=
80
(10)
2
−5
x
=
−245
(11)
2
5
x
=
5
(12)
2
−
x
=
−10
©2026 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
=
−32
2
x
=
16
x
=
±
4
(3)
2
−3
x
=
−1
2
x
1
=
3
x
3
=
±
3
(4)
2
3
x
=
3
2
x
=
1
x
=
±
1
(5)
2
−5
x
=
−180
2
x
=
36
x
=
±
6
(6)
2
5
x
=
45
2
x
=
9
x
=
±
3
(7)
2
3
x
=
1
2
x
1
=
3
x
3
=
±
3
(8)
2
7
x
=
5
2
x
5
=
7
x
35
=
±
7
(9)
2
5
x
=
80
2
x
=
16
x
=
±
4
(10)
2
−5
x
=
−245
2
x
=
49
x
=
±
7
(11)
2
5
x
=
5
2
x
=
1
x
=
±
1
(12)
2
−
x
=
−10
2
x
=
10
x
10
=
±