［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．
[181-00]
(1)
[
y
]
x
=
5
y
z
(2)
3
[
y
]
x
=
7
y
z
(3)
[
v
]
u
=
7
v
(4)
[
c
]
a
=
3
b
c
(5)
[
y
]
x
=
7
y
z
(6)
[
y
]
x
=
2
y
(7)
[
q
]
p
=
7
q
(8)
[
c
]
a
=
5
b
c
(9)
3
[
r
]
p
=
3
q
r
(10)
[
y
]
x
=
10
y
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
[
y
]
x
=
5
y
z
5
y
z
=
x
y
x
=
5
z
(2)
3
[
y
]
x
=
7
y
z
3
7
y
z
=
x
y
x
=
3
7
z
(3)
[
v
]
u
=
7
v
7
v
=
u
v
1
=
u
7
(4)
[
c
]
a
=
3
b
c
3
b
c
=
a
c
a
=
3
b
(5)
[
y
]
x
=
7
y
z
7
y
z
=
x
y
x
=
7
z
(6)
[
y
]
x
=
2
y
2
y
=
x
y
1
=
x
2
(7)
[
q
]
p
=
7
q
7
q
=
p
q
1
=
p
7
(8)
[
c
]
a
=
5
b
c
5
b
c
=
a
c
a
=
5
b
(9)
3
[
r
]
p
=
3
q
r
3
3
q
r
=
p
r
p
=
3
3
q
(10)
[
y
]
x
=
10
y
10
y
=
x
y
1
=
x
10