［文字サイズの変更］
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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
[0E4-00]
(1)
−5
x
−
7
x
−
8
=
4
x
＋
8
(2)
−4
x
＋
1
=
−7
x
＋
6
x
−
11
(3)
10
x
−
8
＋
7
x
=
−2
x
＋
144
(4)
4
x
＋
7
x
−
4
=
−4
x
−
79
(5)
−6
x
＋
1
=
6
x
＋
6
x
＋
109
(6)
−8
x
＋
8
=
4
x
＋
27
＋
7
x
(7)
−10
x
＋
7
x
＋
8
=
−4
x
＋
2
(8)
−4
x
−
10
＋
2
x
=
x
−
19
(9)
10
＋
3
x
＋
7
x
=
6
x
＋
50
(10)
−3
x
＋
10
=
−
x
＋
10
−
2
x
(11)
−9
＋
2
x
=
−8
x
＋
5
x
−
39
(12)
−2
x
＋
x
−
5
=
−5
x
−
9
(13)
−5
x
−
8
x
＋
1
=
−10
x
−
20
(14)
−8
x
＋
4
=
−7
x
＋
40
−
7
x
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
−5
x
−
7
x
−
8
=
4
x
＋
8
−5
x
−
7
x
−
4
x
=
8
＋
8
x
=
16
÷
(
−16
)
x
=
−1
(2)
−4
x
＋
1
=
−7
x
＋
6
x
−
11
−4
x
＋
7
x
−
6
x
=
−
11
−
1
x
=
−12
÷
(
−3
)
x
=
4
(3)
10
x
−
8
＋
7
x
=
−2
x
＋
144
10
x
＋
7
x
＋
2
x
=
144
＋
8
x
=
152
÷
19
x
=
8
(4)
4
x
＋
7
x
−
4
=
−4
x
−
79
4
x
＋
7
x
＋
4
x
=
−79
＋
4
x
=
−75
÷
15
x
=
−5
(5)
−6
x
＋
1
=
6
x
＋
6
x
＋
109
−6
x
−
6
x
−
6
x
=
109
−
1
x
=
108
÷
(
−18
)
x
=
−6
(6)
−8
x
＋
8
=
4
x
＋
27
＋
7
x
−8
x
−
4
x
−
7
x
=
27
−
8
x
=
19
÷
(
−19
)
x
=
−1
(7)
−10
x
＋
7
x
＋
8
=
−4
x
＋
2
−10
x
＋
7
x
＋
4
x
=
2
−
8
x
=
−6
÷
1
x
=
−6
(8)
−4
x
−
10
＋
2
x
=
x
−
19
−4
x
＋
2
x
−
x
=
−
19
＋
10
x
=
−9
÷
(
−3
)
x
=
3
(9)
10
＋
3
x
＋
7
x
=
6
x
＋
50
3
x
＋
7
x
−
6
x
=
50
−
10
x
=
40
÷
4
x
=
10
(10)
−3
x
＋
10
=
−
x
＋
10
−
2
x
−3
x
＋
x
＋
2
x
=
10
−
10
x
=
0
÷
0
x
=
NAN
(11)
−9
＋
2
x
=
−8
x
＋
5
x
−
39
2
x
＋
8
x
−
5
x
=
−39
＋
9
x
=
−30
÷
5
x
=
−6
(12)
−2
x
＋
x
−
5
=
−5
x
−
9
−2
x
＋
x
＋
5
x
=
−9
＋
5
x
=
−4
÷
4
x
=
−1
(13)
−5
x
−
8
x
＋
1
=
−10
x
−
20
−5
x
−
8
x
＋
10
x
=
−
20
−
1
x
=
−21
÷
(
−3
)
x
=
7
(14)
−8
x
＋
4
=
−7
x
＋
40
−
7
x
−8
x
＋
7
x
＋
7
x
=
40
−
4
x
=
36
÷
6
x
=
6