［文字サイズの変更］
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©2018 数学クラブ http://sugaku.club/
月 日（ ）
● 次の方程式を解きなさい
[0E2-00]
(1)
−1
−
(
−7
)
x
=
6
x
(2)
−4
x
−
(
−42
)
=
2
x
(3)
−2
x
−
10
=
3
x
(4)
108
−
(
−10
)
x
=
−2
x
(5)
4
x
＋
(
−4
)
=
−20
(6)
90
−
(
−2
)
x
=
−8
x
(7)
−3
＋
(
−6
)
x
=
−27
(8)
7
＋
2
x
=
27
(9)
−4
x
＋
36
=
−10
x
(10)
−68
−
(
−7
)
x
=
−10
x
(11)
−10
x
−
6
=
−16
(12)
8
−
4
x
=
−32
(13)
−135
−
(
−5
)
x
=
−10
x
(14)
−7
x
−
(
−6
)
=
−8
©2018 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
−1
−
(
−7
)
x
=
6
x
7
x
−
6
x
=
1
x
=
1
(2)
−4
x
−
(
−42
)
=
2
x
−4
x
−
2
x
=
−42
−6
x
=
−42
x
=
7
(3)
−2
x
−
10
=
3
x
−2
x
−
3
x
=
10
−5
x
=
10
x
=
−2
(4)
108
−
(
−10
)
x
=
−2
x
10
x
＋
2
x
=
−
108
12
x
=
−108
x
=
−9
(5)
4
x
＋
(
−4
)
=
−20
4
x
=
−20
＋
4
4
x
=
−16
x
=
−4
(6)
90
−
(
−2
)
x
=
−8
x
2
x
＋
8
x
=
−
90
10
x
=
−90
x
=
−9
(7)
−3
＋
(
−6
)
x
=
−27
−6
x
=
−27
＋
3
−6
x
=
−24
x
=
4
(8)
7
＋
2
x
=
27
2
x
=
27
−
7
2
x
=
20
x
=
10
(9)
−4
x
＋
36
=
−10
x
−4
x
＋
10
x
=
−
36
6
x
=
−36
x
=
−6
(10)
−68
−
(
−7
)
x
=
−10
x
7
x
＋
10
x
=
68
17
x
=
68
x
=
4
(11)
−10
x
−
6
=
−16
−10
x
=
−16
＋
6
−10
x
=
−10
x
=
1
(12)
8
−
4
x
=
−32
−
4
x
=
−32
−
8
−
4
x
=
−40
x
=
10
(13)
−135
−
(
−5
)
x
=
−10
x
5
x
＋
10
x
=
135
15
x
=
135
x
=
9
(14)
−7
x
−
(
−6
)
=
−8
−7
x
=
−8
−
6
−7
x
=
−14
x
=
2