[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
[0E5-30]
(1)
114
−6
(
−4
x
−
1.4
)
=
5
(2)
9
(
8
x
−
0.6
)
=
−120.6
(3)
1
−2
(
−6
x
+
)
=
−25
2
(4)
7
847
(
−6
x
−
0.5
)
=
−
4
8
(5)
4
(
3
x
+
1
)
=
−0.8
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
114
−6
(
−4
x
−
1.4
)
=
5
24
x
+
8.4
114
=
5
24
x
114
=
−
8.4
5
x
3
=
5
(2)
9
(
8
x
−
0.6
)
=
−120.6
72
x
−
5.4
=
−120.6
72
x
=
−120.6
+
5.4
x
=
−1.6
(3)
1
−2
(
−6
x
+
)
=
−25
2
12
x
−
1
=
−25
12
x
=
−25
+
1
x
=
−2
(4)
7
847
(
−6
x
−
0.5
)
=
−
4
8
21
7
−
x
−
2
8
847
=
−
8
21
−
x
2
847
7
=
−
+
8
8
x
=
10
(5)
4
(
3
x
+
1
)
=
−0.8
12
x
+
4
=
−0.8
12
x
=
−0.8
−
4
x
=
−0.4