［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．
[181-00]
(1)
[
b
]
a
=
9
b
(2)
2
[
c
]
a
=
5
b
c
(3)
[
y
]
x
=
4
y
z
(4)
2
[
w
]
u
=
7
v
w
(5)
[
c
]
a
=
5
b
c
(6)
2
[
y
]
x
=
6
y
z
(7)
2
[
c
]
a
=
9
b
c
(8)
[
v
]
u
=
8
v
w
(9)
[
q
]
p
=
9
q
(10)
2
[
v
]
u
=
10
v
w
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
[
b
]
a
=
9
b
9
b
=
a
b
1
=
a
9
(2)
2
[
c
]
a
=
5
b
c
2
5
b
c
=
a
c
a
=
2
5
b
(3)
[
y
]
x
=
4
y
z
4
y
z
=
x
y
x
=
4
z
(4)
2
[
w
]
u
=
7
v
w
2
7
v
w
=
u
w
u
=
2
7
v
(5)
[
c
]
a
=
5
b
c
5
b
c
=
a
c
a
=
5
b
(6)
2
[
y
]
x
=
6
y
z
2
6
y
z
=
x
y
x
=
2
6
z
(7)
2
[
c
]
a
=
9
b
c
2
9
b
c
=
a
c
a
=
2
9
b
(8)
[
v
]
u
=
8
v
w
8
v
w
=
u
v
u
=
8
w
(9)
[
q
]
p
=
9
q
9
q
=
p
q
1
=
p
9
(10)
2
[
v
]
u
=
10
v
w
2
10
v
w
=
u
v
u
=
2
10
w