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©2024 数学クラブ http://sugaku.club/
月 日（ ）
● 次の方程式を解きなさい
[0E2-00]
(1)
27
＋
10
x
=
x
(2)
−4
−
(
−4
)
x
=
−8
(3)
−8
x
＋
42
=
6
x
(4)
4
x
＋
9
=
1
(5)
−
x
−
(
−12
)
=
x
(6)
−10
x
−
6
=
14
(7)
−8
x
−
6
=
−30
(8)
−4
x
−
(
−3
)
=
43
(9)
−9
x
＋
9
=
72
(10)
−7
x
＋
9
=
−8
x
(11)
−5
−
(
−4
)
x
=
3
(12)
5
x
−
(
−8
)
=
4
x
(13)
6
＋
2
x
=
22
(14)
−5
x
−
4
=
11
©2024 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
27
＋
10
x
=
x
10
x
−
x
=
−
27
9
x
=
−27
x
=
−3
(2)
−4
−
(
−4
)
x
=
−8
4
x
=
−8
＋
4
4
x
=
−4
x
=
−1
(3)
−8
x
＋
42
=
6
x
−8
x
−
6
x
=
−
42
−14
x
=
−42
x
=
3
(4)
4
x
＋
9
=
1
4
x
=
1
−
9
4
x
=
−8
x
=
−2
(5)
−
x
−
(
−12
)
=
x
−
x
−
x
=
−12
−2
x
=
−12
x
=
6
(6)
−10
x
−
6
=
14
−10
x
=
14
＋
6
−10
x
=
20
x
=
−2
(7)
−8
x
−
6
=
−30
−8
x
=
−30
＋
6
−8
x
=
−24
x
=
3
(8)
−4
x
−
(
−3
)
=
43
−4
x
=
43
−
3
−4
x
=
40
x
=
−10
(9)
−9
x
＋
9
=
72
−9
x
=
72
−
9
−9
x
=
63
x
=
−7
(10)
−7
x
＋
9
=
−8
x
−7
x
＋
8
x
=
−
9
x
=
−9
(11)
−5
−
(
−4
)
x
=
3
4
x
=
3
＋
5
4
x
=
8
x
=
2
(12)
5
x
−
(
−8
)
=
4
x
5
x
−
4
x
=
−8
x
=
−8
(13)
6
＋
2
x
=
22
2
x
=
22
−
6
2
x
=
16
x
=
8
(14)
−5
x
−
4
=
11
−5
x
=
11
＋
4
−5
x
=
15
x
=
−3