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©2019 数学クラブ http://sugaku.club/
月 日（ ）
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[162-00]
(1)
2
4
−49
p
÷
(
−7
p
)
(2)
2
2
−35
y
÷
(
7
x
)
(3)
2
3
−54
x
÷
(
9
y
)
(4)
2
4
4
10
b
c
÷
(
10
a
)
(5)
3
−21
p
÷
(
−7
q
)
(6)
2
4
60
q
÷
(
−6
q
)
(7)
2
3
4
−48
a
b
÷
(
−8
b
)
(8)
2
−9
x
÷
(
−9
y
)
(9)
2
4
3
20
b
c
÷
(
−10
b
)
(10)
4
8
q
r
÷
(
8
p
)
(11)
4
4
2
30
u
v
÷
(
−10
v
w
)
(12)
4
70
u
v
÷
(
7
v
)
(13)
2
4
−4
p
÷
(
2
q
r
)
(14)
4
3
2
25
b
c
÷
(
5
a
b
)
(15)
4
4
54
r
÷
(
9
p
)
(16)
3
10
b
c
÷
(
5
a
)
©2019 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
2
4
−49
p
÷
(
−7
p
)
2
−49
p
7
=
=
4
−7
p
2
p
(2)
2
2
−35
y
÷
(
7
x
)
2
−35
y
2
5
y
=
=
−
2
7
x
2
x
(3)
2
3
−54
x
÷
(
9
y
)
2
−54
x
2
6
x
=
=
−
3
9
y
3
y
(4)
2
4
4
10
b
c
÷
(
10
a
)
2
4
10
b
c
2
4
b
c
=
=
4
10
a
4
a
(5)
3
−21
p
÷
(
−7
q
)
−21
p
3
p
=
=
3
−7
q
3
q
(6)
2
4
60
q
÷
(
−6
q
)
2
60
q
10
=
=
−
4
−6
q
2
q
(7)
2
3
4
−48
a
b
÷
(
−8
b
)
2
3
−48
a
b
2
6
a
=
=
4
−8
b
b
(8)
2
−9
x
÷
(
−9
y
)
−9
x
x
=
=
2
−9
y
2
y
(9)
2
4
3
20
b
c
÷
(
−10
b
)
2
4
20
b
c
4
2
c
=
=
−
3
−10
b
b
(10)
4
8
q
r
÷
(
8
p
)
8
q
r
q
r
=
=
4
8
p
4
p
(11)
4
4
2
30
u
v
÷
(
−10
v
w
)
4
30
u
v
3
u
=
=
−
4
2
−10
v
w
2
w
(12)
4
70
u
v
÷
(
7
v
)
4
70
u
v
4
=
=
10
u
7
v
(13)
2
4
−4
p
÷
(
2
q
r
)
−4
p
2
p
=
=
−
2
4
2
q
r
2
4
q
r
(14)
4
3
2
25
b
c
÷
(
5
a
b
)
4
3
25
b
c
3
3
5
b
c
=
=
2
5
a
b
2
a
(15)
4
4
54
r
÷
(
9
p
)
4
54
r
4
6
r
=
=
4
9
p
4
p
(16)
3
10
b
c
÷
(
5
a
)
3
10
b
c
3
2
b
c
=
=
5
a
a