[文字サイズの変更]
▼
▲
©2026 数学クラブ http://sugaku.club/
月 日( )
● 次の方程式を解きなさい
[224-00]
(1)
2
3
x
=
15
x
+
108
(2)
2
2
x
=
32
(3)
2
2
x
=
2
x
+
180
(4)
2
2
x
−
6
x
−
108
=
0
(5)
2
3
x
=
−
9
x
+
210
(6)
2
2
x
=
−
24
x
−
70
(7)
2
2
x
=
24
x
−
40
(8)
2
3
x
+
21
x
=
54
(9)
2
2
x
+
32
x
=
−
128
(10)
2
3
x
=
−
6
x
+
240
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
2
3
x
=
15
x
+
108
3
(
x
+
4
)
(
x
−
9
)
=
0
x
=
−4
,
9
(2)
2
2
x
=
32
2
(
x
−
4
)
(
x
+
4
)
=
0
x
=
4
,
−4
(3)
2
2
x
=
2
x
+
180
2
(
x
+
9
)
(
x
−
10
)
=
0
x
=
−9
,
10
(4)
2
2
x
−
6
x
−
108
=
0
2
(
x
+
6
)
(
x
−
9
)
=
0
x
=
−6
,
9
(5)
2
3
x
=
−
9
x
+
210
3
(
x
−
7
)
(
x
+
10
)
=
0
x
=
7
,
−10
(6)
2
2
x
=
−
24
x
−
70
2
(
x
+
7
)
(
x
+
5
)
=
0
x
=
−7
,
−5
(7)
2
2
x
=
24
x
−
40
2
(
x
−
2
)
(
x
−
10
)
=
0
x
=
2
,
10
(8)
2
3
x
+
21
x
=
54
3
(
x
−
2
)
(
x
+
9
)
=
0
x
=
2
,
−9
(9)
2
2
x
+
32
x
=
−
128
2
2
(
x
+
8
)
=
0
x
=
−8
(10)
2
3
x
=
−
6
x
+
240
3
(
x
−
8
)
(
x
+
10
)
=
0
x
=
8
,
−10