［文字サイズの変更］
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©2019 数学クラブ http://sugaku.club/
月 日（ ）
● 次の方程式を解きなさい
[0E3-00]
(1)
−8
x
＋
3
=
78
＋
7
x
(2)
4
x
＋
9
=
8
x
＋
33
(3)
3
x
＋
4
=
−36
−
x
(4)
−9
−
5
x
=
−72
＋
4
x
(5)
−3
x
−
2
=
4
x
−
30
(6)
2
x
−
6
=
36
＋
8
x
(7)
10
x
−
3
=
−
x
＋
30
(8)
−
x
−
9
=
3
＋
x
(9)
−10
x
＋
6
=
10
x
＋
166
(10)
8
＋
2
x
=
−52
−
4
x
(11)
5
x
−
7
=
−10
＋
2
x
(12)
5
x
−
1
=
9
x
−
29
(13)
8
x
＋
3
=
−9
x
−
116
(14)
−7
x
＋
1
=
7
x
＋
113
©2019 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
−8
x
＋
3
=
78
＋
7
x
−8
x
−
7
x
=
78
−
3
x
=
75
÷
(
−15
)
x
=
−5
(2)
4
x
＋
9
=
8
x
＋
33
4
x
−
8
x
=
33
−
9
x
=
24
÷
(
−4
)
x
=
−6
(3)
3
x
＋
4
=
−36
−
x
3
x
＋
x
=
−36
−
4
x
=
−40
÷
4
x
=
−10
(4)
−9
−
5
x
=
−72
＋
4
x
−5
x
−
4
x
=
−72
＋
9
x
=
−63
÷
(
−9
)
x
=
7
(5)
−3
x
−
2
=
4
x
−
30
−3
x
−
4
x
=
−
30
＋
2
x
=
−28
÷
(
−7
)
x
=
4
(6)
2
x
−
6
=
36
＋
8
x
2
x
−
8
x
=
36
＋
6
x
=
42
÷
(
−6
)
x
=
−7
(7)
10
x
−
3
=
−
x
＋
30
10
x
＋
x
=
30
＋
3
x
=
33
÷
11
x
=
3
(8)
−
x
−
9
=
3
＋
x
−
x
−
x
=
3
＋
9
x
=
12
÷
(
−2
)
x
=
−6
(9)
−10
x
＋
6
=
10
x
＋
166
−10
x
−
10
x
=
166
−
6
x
=
160
÷
(
−20
)
x
=
−8
(10)
8
＋
2
x
=
−52
−
4
x
2
x
＋
4
x
=
−52
−
8
x
=
−60
÷
6
x
=
−10
(11)
5
x
−
7
=
−10
＋
2
x
5
x
−
2
x
=
−10
＋
7
x
=
−3
÷
3
x
=
−1
(12)
5
x
−
1
=
9
x
−
29
5
x
−
9
x
=
−29
＋
1
x
=
−28
÷
(
−4
)
x
=
7
(13)
8
x
＋
3
=
−9
x
−
116
8
x
＋
9
x
=
−
116
−
3
x
=
−119
÷
17
x
=
−7
(14)
−7
x
＋
1
=
7
x
＋
113
−7
x
−
7
x
=
113
−
1
x
=
112
÷
(
−14
)
x
=
−8