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©2018 数学クラブ http://sugaku.club/
月 日（ ）
● 次の方程式を解きなさい
[0E2-00]
(1)
4
x
＋
(
−5
)
=
9
x
(2)
1
＋
6
x
=
−29
(3)
−10
x
−
(
−90
)
=
8
x
(4)
4
x
＋
(
−70
)
=
−3
x
(5)
−2
−
3
x
=
−26
(6)
7
x
＋
(
−26
)
=
−6
x
(7)
−8
x
＋
8
=
40
(8)
−5
x
＋
(
−3
)
=
−28
(9)
10
x
−
6
=
−76
(10)
9
＋
4
x
=
−15
(11)
−9
−
(
−3
)
x
=
−24
(12)
24
＋
(
−2
)
x
=
10
x
(13)
−5
x
−
(
−70
)
=
5
x
(14)
−35
−
(
−5
)
x
=
−2
x
©2018 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
4
x
＋
(
−5
)
=
9
x
4
x
−
9
x
=
5
−5
x
=
5
x
=
−1
(2)
1
＋
6
x
=
−29
6
x
=
−29
−
1
6
x
=
−30
x
=
−5
(3)
−10
x
−
(
−90
)
=
8
x
−10
x
−
8
x
=
−90
−18
x
=
−90
x
=
5
(4)
4
x
＋
(
−70
)
=
−3
x
4
x
＋
3
x
=
70
7
x
=
70
x
=
10
(5)
−2
−
3
x
=
−26
−
3
x
=
−26
＋
2
−
3
x
=
−24
x
=
8
(6)
7
x
＋
(
−26
)
=
−6
x
7
x
＋
6
x
=
26
13
x
=
26
x
=
2
(7)
−8
x
＋
8
=
40
−8
x
=
40
−
8
−8
x
=
32
x
=
−4
(8)
−5
x
＋
(
−3
)
=
−28
−5
x
=
−28
＋
3
−5
x
=
−25
x
=
5
(9)
10
x
−
6
=
−76
10
x
=
−76
＋
6
10
x
=
−70
x
=
−7
(10)
9
＋
4
x
=
−15
4
x
=
−15
−
9
4
x
=
−24
x
=
−6
(11)
−9
−
(
−3
)
x
=
−24
3
x
=
−24
＋
9
3
x
=
−15
x
=
−5
(12)
24
＋
(
−2
)
x
=
10
x
−2
x
−
10
x
=
−
24
−12
x
=
−24
x
=
2
(13)
−5
x
−
(
−70
)
=
5
x
−5
x
−
5
x
=
−70
−10
x
=
−70
x
=
7
(14)
−35
−
(
−5
)
x
=
−2
x
5
x
＋
2
x
=
35
7
x
=
35
x
=
5