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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)
2
−
(
−2
)
x
=
6
(2)
6
x
＋
(
−8
)
=
−56
(3)
10
−
x
=
6
(4)
4
x
−
(
−3
)
=
−29
(5)
18
＋
(
−10
)
x
=
−4
x
(6)
2
x
＋
42
=
8
x
(7)
−9
x
−
1
=
−46
(8)
−39
＋
6
x
=
−7
x
(9)
10
x
＋
36
=
−8
x
(10)
−12
−
2
x
=
−5
x
(11)
3
x
＋
7
=
−20
(12)
−5
x
＋
4
=
−7
x
(13)
−49
−
x
=
6
x
(14)
−2
−
7
x
=
−44
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
2
−
(
−2
)
x
=
6
2
x
=
6
−
2
2
x
=
4
x
=
2
(2)
6
x
＋
(
−8
)
=
−56
6
x
=
−56
＋
8
6
x
=
−48
x
=
−8
(3)
10
−
x
=
6
−
x
=
6
−
10
−
x
=
−4
x
=
4
(4)
4
x
−
(
−3
)
=
−29
4
x
=
−29
−
3
4
x
=
−32
x
=
−8
(5)
18
＋
(
−10
)
x
=
−4
x
−10
x
＋
4
x
=
−
18
−6
x
=
−18
x
=
3
(6)
2
x
＋
42
=
8
x
2
x
−
8
x
=
−
42
−6
x
=
−42
x
=
7
(7)
−9
x
−
1
=
−46
−9
x
=
−46
＋
1
−9
x
=
−45
x
=
5
(8)
−39
＋
6
x
=
−7
x
6
x
＋
7
x
=
39
13
x
=
39
x
=
3
(9)
10
x
＋
36
=
−8
x
10
x
＋
8
x
=
−
36
18
x
=
−36
x
=
−2
(10)
−12
−
2
x
=
−5
x
−
2
x
＋
5
x
=
12
3
x
=
12
x
=
4
(11)
3
x
＋
7
=
−20
3
x
=
−20
−
7
3
x
=
−27
x
=
−9
(12)
−5
x
＋
4
=
−7
x
−5
x
＋
7
x
=
−
4
2
x
=
−4
x
=
−2
(13)
−49
−
x
=
6
x
−
x
−
6
x
=
49
−7
x
=
49
x
=
−7
(14)
−2
−
7
x
=
−44
−
7
x
=
−44
＋
2
−
7
x
=
−42
x
=
6