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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)
1
3
11
(
x
−
6
)
=
−
3
2
5
(2)
1.1
(
−1.7
x
+
1.1
)
=
−13.75
(3)
117
−0.9
(
−2
x
−
10
)
=
10
(4)
2
26
2
(
x
−
1.8
)
=
−
3
5
(5)
−10
(
0.3
x
+
1.1
)
=
−5
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
1
3
11
(
x
−
6
)
=
−
3
2
5
1
x
−
2
2
11
=
−
5
1
x
2
11
=
−
+
2
5
x
2
=
−
5
(2)
1.1
(
−1.7
x
+
1.1
)
=
−13.75
−1.87
x
+
1.21
=
−13.75
−1.87
x
=
−13.75
−
1.21
x
=
8
(3)
117
−0.9
(
−2
x
−
10
)
=
10
1.8
x
+
9
117
=
10
1.8
x
117
=
−
9
10
x
3
=
2
(4)
2
26
2
(
x
−
1.8
)
=
−
3
5
4
x
−
3.6
3
26
=
−
5
4
x
3
26
=
−
+
3.6
5
x
6
=
−
5
(5)
−10
(
0.3
x
+
1.1
)
=
−5
−3
x
−
11
=
−5
−3
x
=
−5
+
11
x
=
−2