［文字サイズの変更］
▼
▲
©2025 数学クラブ http://sugaku.club/
月 日（ ）
● 次の等式を[ ]内の変数について解きなさい．
[181-20]
(1)
1
[
b
]
a
=
−
b
c
4
(2)
1
[
z
]
x
=
y
z
4
(3)
4
[
v
]
u
=
v
5
(4)
1
2
[
q
]
p
=
q
r
2
(5)
1
[
c
]
a
=
−
b
c
4
(6)
2
3
[
y
]
x
=
y
z
5
(7)
1
[
y
]
x
=
y
2
(8)
1
2
[
r
]
p
=
q
r
2
(9)
2
2
[
q
]
p
=
−
q
r
3
(10)
3
[
b
]
a
=
−
b
5
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
1
[
b
]
a
=
−
b
c
4
1
−
b
c
4
=
a
b
4
a
=
−
c
(2)
1
[
z
]
x
=
y
z
4
1
y
z
4
=
x
z
4
x
=
y
(3)
4
[
v
]
u
=
v
5
4
v
5
=
u
v
5
=
u
4
(4)
1
2
[
q
]
p
=
q
r
2
1
2
q
r
2
=
p
q
2
p
=
2
r
(5)
1
[
c
]
a
=
−
b
c
4
1
−
b
c
4
=
a
c
4
a
=
−
b
(6)
2
3
[
y
]
x
=
y
z
5
2
3
y
z
5
=
x
y
5
x
=
3
2
z
(7)
1
[
y
]
x
=
y
2
1
y
2
=
x
y
=
2
x
(8)
1
2
[
r
]
p
=
q
r
2
1
2
q
r
2
=
p
r
2
p
=
2
q
(9)
2
2
[
q
]
p
=
−
q
r
3
2
2
−
q
r
3
=
p
q
3
p
=
−
2
2
r
(10)
3
[
b
]
a
=
−
b
5
3
−
b
5
=
a
b
5
=
−
a
3