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©2025 数学クラブ http://sugaku.club/
月 日（ ）
● 次の方程式を解きなさい
[0E2-00]
(1)
10
x
−
(
−33
)
=
−
x
(2)
6
−
(
−7
)
x
=
6
x
(3)
−56
−
(
−5
)
x
=
−3
x
(4)
−35
＋
(
−7
)
x
=
−2
x
(5)
−3
＋
(
−9
)
x
=
78
(6)
1
＋
10
x
=
61
(7)
4
−
2
x
=
8
(8)
3
x
＋
(
−50
)
=
−7
x
(9)
10
x
＋
8
=
−12
(10)
8
−
3
x
=
−7
x
(11)
8
x
−
(
−4
)
=
−52
(12)
12
＋
7
x
=
x
(13)
−9
−
(
−7
)
x
=
8
x
(14)
1
＋
(
−2
)
x
=
19
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
10
x
−
(
−33
)
=
−
x
10
x
＋
x
=
−33
11
x
=
−33
x
=
−3
(2)
6
−
(
−7
)
x
=
6
x
7
x
−
6
x
=
−
6
x
=
−6
(3)
−56
−
(
−5
)
x
=
−3
x
5
x
＋
3
x
=
56
8
x
=
56
x
=
7
(4)
−35
＋
(
−7
)
x
=
−2
x
−7
x
＋
2
x
=
35
−5
x
=
35
x
=
−7
(5)
−3
＋
(
−9
)
x
=
78
−9
x
=
78
＋
3
−9
x
=
81
x
=
−9
(6)
1
＋
10
x
=
61
10
x
=
61
−
1
10
x
=
60
x
=
6
(7)
4
−
2
x
=
8
−
2
x
=
8
−
4
−
2
x
=
4
x
=
−2
(8)
3
x
＋
(
−50
)
=
−7
x
3
x
＋
7
x
=
50
10
x
=
50
x
=
5
(9)
10
x
＋
8
=
−12
10
x
=
−12
−
8
10
x
=
−20
x
=
−2
(10)
8
−
3
x
=
−7
x
−
3
x
＋
7
x
=
−
8
4
x
=
−8
x
=
−2
(11)
8
x
−
(
−4
)
=
−52
8
x
=
−52
−
4
8
x
=
−56
x
=
−7
(12)
12
＋
7
x
=
x
7
x
−
x
=
−
12
6
x
=
−12
x
=
−2
(13)
−9
−
(
−7
)
x
=
8
x
7
x
−
8
x
=
9
−
x
=
9
x
=
−9
(14)
1
＋
(
−2
)
x
=
19
−2
x
=
19
−
1
−2
x
=
18
x
=
−9