［文字サイズの変更］
▼
▲
©2026 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
2
(2)
3
[
w
]
u
=
v
w
4
(3)
4
3
[
q
]
p
=
−
q
r
5
(4)
1
[
y
]
x
=
y
4
(5)
1
[
b
]
a
=
b
c
2
(6)
4
3
[
c
]
a
=
−
b
c
5
(7)
1
[
q
]
p
=
−
q
3
(8)
1
[
v
]
u
=
−
v
w
2
(9)
1
[
y
]
x
=
y
5
(10)
3
[
v
]
u
=
v
w
5
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
1
[
b
]
a
=
−
b
2
1
−
b
2
=
a
b
=
−2
a
(2)
3
[
w
]
u
=
v
w
4
3
v
w
4
=
u
w
4
u
=
3
v
(3)
4
3
[
q
]
p
=
−
q
r
5
4
3
−
q
r
5
=
p
q
5
p
=
−
3
4
r
(4)
1
[
y
]
x
=
y
4
1
y
4
=
x
y
=
4
x
(5)
1
[
b
]
a
=
b
c
2
1
b
c
2
=
a
b
2
a
=
c
(6)
4
3
[
c
]
a
=
−
b
c
5
4
3
−
b
c
5
=
a
c
5
a
=
−
3
4
b
(7)
1
[
q
]
p
=
−
q
3
1
−
q
3
=
p
q
=
−3
p
(8)
1
[
v
]
u
=
−
v
w
2
1
−
v
w
2
=
u
v
2
u
=
−
w
(9)
1
[
y
]
x
=
y
5
1
y
5
=
x
y
=
5
x
(10)
3
[
v
]
u
=
v
w
5
3
v
w
5
=
u
v
5
u
=
3
w