[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.
[181-20]
(1)
1
3
[
z
]
x
=
−
y
z
5
(2)
1
[
y
]
x
=
y
2
(3)
3
[
r
]
p
=
−
q
r
4
(4)
1
3
[
b
]
a
=
−
b
c
2
(5)
3
[
b
]
a
=
b
c
4
(6)
1
[
z
]
x
=
y
z
2
(7)
1
[
y
]
x
=
−
y
4
(8)
3
[
q
]
p
=
−
q
4
(9)
1
[
v
]
u
=
v
2
(10)
1
[
w
]
u
=
v
w
2
©2025 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
1
3
[
z
]
x
=
−
y
z
5
1
3
−
y
z
5
=
x
z
5
x
=
−
3
y
(2)
1
[
y
]
x
=
y
2
1
y
2
=
x
y
=
2
x
(3)
3
[
r
]
p
=
−
q
r
4
3
−
q
r
4
=
p
r
4
p
=
−
3
q
(4)
1
3
[
b
]
a
=
−
b
c
2
1
3
−
b
c
2
=
a
b
2
a
=
−
3
c
(5)
3
[
b
]
a
=
b
c
4
3
b
c
4
=
a
b
4
a
=
3
c
(6)
1
[
z
]
x
=
y
z
2
1
y
z
2
=
x
z
2
x
=
y
(7)
1
[
y
]
x
=
−
y
4
1
−
y
4
=
x
y
=
−4
x
(8)
3
[
q
]
p
=
−
q
4
3
−
q
4
=
p
q
4
=
−
p
3
(9)
1
[
v
]
u
=
v
2
1
v
2
=
u
v
=
2
u
(10)
1
[
w
]
u
=
v
w
2
1
v
w
2
=
u
w
2
u
=
v