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