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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
[0E1-20]
(1)
4
7
x
=
−
9
10
(2)
8
5
x
=
−
5
9
(3)
1
4
−
x
=
2
3
(4)
2
11
x
=
3
8
(5)
5
3
x
=
−
6
2
(6)
5
x
=
0
3
(7)
5
x
=
0
7
(8)
9
4
x
=
8
3
(9)
2
−
x
=
0
5
(10)
2
1
x
=
7
3
(11)
3
7
−
x
=
−
2
6
(12)
8
8
−
x
=
5
9
(13)
4
1
x
=
−
9
5
(14)
8
2
−
x
=
5
3
©2025 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
4
7
x
=
−
9
10
x
63
=
−
40
(2)
8
5
x
=
−
5
9
x
25
=
−
72
(3)
1
4
−
x
=
2
3
x
8
=
−
3
(4)
2
11
x
=
3
8
x
33
=
16
(5)
5
3
x
=
−
6
2
x
9
=
−
5
(6)
5
x
=
0
3
x
=
0
(7)
5
x
=
0
7
x
=
0
(8)
9
4
x
=
8
3
x
32
=
27
(9)
2
−
x
=
0
5
x
=
0
(10)
2
1
x
=
7
3
x
7
=
6
(11)
3
7
−
x
=
−
2
6
x
7
=
9
(12)
8
8
−
x
=
5
9
x
5
=
−
9
(13)
4
1
x
=
−
9
5
x
9
=
−
20
(14)
8
2
−
x
=
5
3
x
5
=
−
12