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©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)
11
637
−8
(
−
x
+
7
)
=
−
10
10
(2)
1
13
(
−8
x
+
9
)
=
2
10
(3)
8
9
369
−
(
5
x
+
)
=
−
7
8
7
(4)
−4
(
−
x
−
1
)
=
−0.4
(5)
7
(
7
x
+
0.7
)
=
19.6
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
11
637
−8
(
−
x
+
7
)
=
−
10
10
44
x
−
56
5
637
=
−
10
44
x
5
637
=
−
+
56
10
x
7
=
−
8
(2)
1
13
(
−8
x
+
9
)
=
2
10
9
−4
x
+
2
13
=
10
−4
x
13
9
=
−
10
2
x
4
=
5
(3)
8
9
369
−
(
5
x
+
)
=
−
7
8
7
40
9
−
x
−
7
7
369
=
−
7
40
−
x
7
369
9
=
−
+
7
7
x
=
9
(4)
−4
(
−
x
−
1
)
=
−0.4
4
x
+
4
=
−0.4
4
x
=
−0.4
−
4
x
=
−1.1
(5)
7
(
7
x
+
0.7
)
=
19.6
49
x
+
4.9
=
19.6
49
x
=
19.6
−
4.9
x
=
0.3