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©2024 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
=
−2
(2)
2
3
x
=
27
(3)
2
3
x
=
75
(4)
2
−2
x
=
−18
(5)
2
6
x
=
3
(6)
2
−3
x
=
−48
(7)
2
−5
x
=
−5
(8)
2
2
x
=
2
(9)
2
−4
x
=
−2
(10)
2
−4
x
=
−1
(11)
2
−2
x
=
−98
(12)
2
7
x
=
2
©2024 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
2
−2
x
=
−2
2
x
=
1
x
=
±
1
(2)
2
3
x
=
27
2
x
=
9
x
=
±
3
(3)
2
3
x
=
75
2
x
=
25
x
=
±
5
(4)
2
−2
x
=
−18
2
x
=
9
x
=
±
3
(5)
2
6
x
=
3
2
x
1
=
2
x
2
=
±
2
(6)
2
−3
x
=
−48
2
x
=
16
x
=
±
4
(7)
2
−5
x
=
−5
2
x
=
1
x
=
±
1
(8)
2
2
x
=
2
2
x
=
1
x
=
±
1
(9)
2
−4
x
=
−2
2
x
1
=
2
x
2
=
±
2
(10)
2
−4
x
=
−1
2
x
1
=
4
x
1
=
±
2
(11)
2
−2
x
=
−98
2
x
=
49
x
=
±
7
(12)
2
7
x
=
2
2
x
2
=
7
x
14
=
±
7