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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
[0E5-30]
(1)
−5
(
0.6
x
+
6
)
=
−36
(2)
5
1
1
−0.5
(
x
+
)
=
−
6
6
3
(3)
3
4
114
−
(
−8
x
−
)
=
−
2
5
5
(4)
−7
(
−1.8
x
+
0.1
)
=
24.5
(5)
1
9
(
4
x
−
5
)
=
2
10
©2025 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
−5
(
0.6
x
+
6
)
=
−36
−3
x
−
30
=
−36
−3
x
=
−36
+
30
x
=
2
(2)
5
1
1
−0.5
(
x
+
)
=
−
6
6
3
5
1
−
x
−
12
12
1
=
−
3
5
−
x
12
1
1
=
−
+
3
12
x
3
=
5
(3)
3
4
114
−
(
−8
x
−
)
=
−
2
5
5
6
12
x
+
5
114
=
−
5
12
x
114
6
=
−
−
5
5
x
=
−2
(4)
−7
(
−1.8
x
+
0.1
)
=
24.5
12.6
x
−
0.7
=
24.5
12.6
x
=
24.5
+
0.7
x
=
2
(5)
1
9
(
4
x
−
5
)
=
2
10
5
2
x
−
2
9
=
10
2
x
9
5
=
+
10
2
x
17
=
10