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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
[210-20]
(1)
2
36
5
x
=
5
(2)
2
18
−2
x
=
−
25
(3)
2
2
x
=
2
(4)
5
2
2
x
=
7
5
(5)
2
3
3
x
=
4
(6)
2
2
x
=
2
(7)
2
−2
x
=
−2
(8)
2
1
−3
x
=
−
12
(9)
2
1
x
=
5
(10)
1
2
−
x
=
−1
2
©2024 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
2
5
x
36
=
5
2
x
36
=
25
x
6
=
±
5
(2)
2
−2
x
18
=
−
25
2
x
9
=
25
x
3
=
±
5
(3)
2
2
x
=
2
2
x
=
1
x
=
±
1
(4)
5
2
x
7
2
=
5
2
x
14
=
25
x
1
14
=
±
5
(5)
2
3
x
3
=
4
2
x
1
=
4
x
1
=
±
2
(6)
2
2
x
=
2
2
x
=
1
x
=
±
1
(7)
2
−2
x
=
−2
2
x
=
1
x
=
±
1
(8)
2
−3
x
1
=
−
12
2
x
1
=
36
x
1
=
±
6
(9)
2
x
1
=
5
x
5
=
±
5
(10)
1
2
−
x
2
=
−1
2
x
=
2
x
2
=
±