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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)
8
＋
2
x
＋
3
x
=
10
x
＋
28
(2)
−9
x
＋
5
=
7
x
−
11
−
8
x
(3)
−5
x
＋
7
=
10
x
＋
127
＋
9
x
(4)
−8
x
−
7
=
10
x
＋
x
＋
183
(5)
−7
x
＋
6
=
−5
x
−
5
x
＋
18
(6)
−8
x
＋
7
=
−8
x
＋
11
−
4
x
(7)
−1
＋
6
x
=
x
−
9
x
−
113
(8)
−7
x
＋
6
−
6
x
=
9
x
−
38
(9)
7
x
＋
7
−
9
x
=
−8
x
−
17
(10)
−4
＋
10
x
＋
7
x
=
10
x
−
18
(11)
−10
x
＋
3
=
10
x
＋
8
x
＋
227
(12)
2
x
＋
6
=
7
x
＋
146
＋
9
x
(13)
−10
x
＋
10
=
−5
x
−
4
x
＋
3
(14)
−10
x
−
2
=
8
x
−
10
x
−
42
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
8
＋
2
x
＋
3
x
=
10
x
＋
28
2
x
＋
3
x
−
10
x
=
28
−
8
x
=
20
÷
(
−5
)
x
=
−4
(2)
−9
x
＋
5
=
7
x
−
11
−
8
x
−9
x
−
7
x
＋
8
x
=
−11
−
5
x
=
−16
÷
(
−8
)
x
=
2
(3)
−5
x
＋
7
=
10
x
＋
127
＋
9
x
−5
x
−
10
x
−
9
x
=
127
−
7
x
=
120
÷
(
−24
)
x
=
−5
(4)
−8
x
−
7
=
10
x
＋
x
＋
183
−8
x
−
10
x
−
x
=
183
＋
7
x
=
190
÷
(
−19
)
x
=
−10
(5)
−7
x
＋
6
=
−5
x
−
5
x
＋
18
−7
x
＋
5
x
＋
5
x
=
18
−
6
x
=
12
÷
3
x
=
4
(6)
−8
x
＋
7
=
−8
x
＋
11
−
4
x
−8
x
＋
8
x
＋
4
x
=
11
−
7
x
=
4
÷
4
x
=
1
(7)
−1
＋
6
x
=
x
−
9
x
−
113
6
x
−
x
＋
9
x
=
−113
＋
1
x
=
−112
÷
14
x
=
−8
(8)
−7
x
＋
6
−
6
x
=
9
x
−
38
−7
x
−
6
x
−
9
x
=
−
38
−
6
x
=
−44
÷
(
−22
)
x
=
2
(9)
7
x
＋
7
−
9
x
=
−8
x
−
17
7
x
−
9
x
＋
8
x
=
−
17
−
7
x
=
−24
÷
6
x
=
−4
(10)
−4
＋
10
x
＋
7
x
=
10
x
−
18
10
x
＋
7
x
−
10
x
=
−18
＋
4
x
=
−14
÷
7
x
=
−2
(11)
−10
x
＋
3
=
10
x
＋
8
x
＋
227
−10
x
−
10
x
−
8
x
=
227
−
3
x
=
224
÷
(
−28
)
x
=
−8
(12)
2
x
＋
6
=
7
x
＋
146
＋
9
x
2
x
−
7
x
−
9
x
=
146
−
6
x
=
140
÷
(
−14
)
x
=
−10
(13)
−10
x
＋
10
=
−5
x
−
4
x
＋
3
−10
x
＋
5
x
＋
4
x
=
3
−
10
x
=
−7
÷
(
−1
)
x
=
7
(14)
−10
x
−
2
=
8
x
−
10
x
−
42
−10
x
−
8
x
＋
10
x
=
−42
＋
2
x
=
−40
÷
(
−8
)
x
=
5