［文字サイズの変更］
▼
▲
©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
=
48
(2)
2
−3
x
=
−3
(3)
2
−2
x
=
−18
(4)
2
−3
x
=
−12
(5)
2
−3
x
=
−8
(6)
2
−5
x
=
−45
(7)
2
−3
x
=
−300
(8)
2
2
x
=
200
(9)
2
5
x
=
80
(10)
2
2
x
=
162
(11)
2
x
=
5
(12)
2
2
x
=
18
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
2
3
x
=
48
2
x
=
16
x
=
±
4
(2)
2
−3
x
=
−3
2
x
=
1
x
=
±
1
(3)
2
−2
x
=
−18
2
x
=
9
x
=
±
3
(4)
2
−3
x
=
−12
2
x
=
4
x
=
±
2
(5)
2
−3
x
=
−8
2
x
8
=
3
x
2
6
=
±
3
(6)
2
−5
x
=
−45
2
x
=
9
x
=
±
3
(7)
2
−3
x
=
−300
2
x
=
100
x
=
±
10
(8)
2
2
x
=
200
2
x
=
100
x
=
±
10
(9)
2
5
x
=
80
2
x
=
16
x
=
±
4
(10)
2
2
x
=
162
2
x
=
81
x
=
±
9
(11)
2
x
=
5
x
5
=
±
(12)
2
2
x
=
18
2
x
=
9
x
=
±
3