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