［文字サイズの変更］
▼
▲
©2019 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．
[182-00]
(1)
[
w
]
u
=
9
(
v
＋
w
)
(2)
[
w
]
u
=
2
(
8
v
＋
w
)
＋
10
(3)
[
b
]
a
=
4
(
b
＋
c
)
(4)
[
v
]
u
=
7
(
v
＋
w
)
(5)
(
y
＋
z
)
r
[
z
]
x
=
8
(6)
5
(
q
＋
r
)
[
q
]
m
=
p
(7)
4
(
v
＋
w
)
[
w
]
A
=
u
(8)
[
z
]
x
=
2
(
4
y
＋
z
)
＋
8
(9)
3
(
x
＋
y
＋
z
)
[
x
]
S
=
10
(10)
7
(
x
＋
y
＋
z
)
[
x
]
S
=
6
©2019 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
[
w
]
u
=
9
(
v
＋
w
)
9
(
v
＋
w
)
=
u
v
＋
w
1
=
u
9
w
1
=
u
−
v
9
(2)
[
w
]
u
=
2
(
8
v
＋
w
)
＋
10
2
(
8
v
＋
w
)
=
u
−
10
8
v
＋
w
u
−
10
=
2
w
1
=
u
−
8
v
−
5
2
(3)
[
b
]
a
=
4
(
b
＋
c
)
4
(
b
＋
c
)
=
a
b
＋
c
1
=
a
4
b
1
=
a
−
c
4
(4)
[
v
]
u
=
7
(
v
＋
w
)
7
(
v
＋
w
)
=
u
v
＋
w
1
=
u
7
v
1
=
u
−
w
7
(5)
(
y
＋
z
)
r
[
z
]
x
=
8
(
y
＋
z
)
r
8
=
x
y
＋
z
8
x
=
r
z
8
x
=
−
y
r
(6)
5
(
q
＋
r
)
[
q
]
m
=
p
5
(
q
＋
r
)
p
=
m
q
＋
r
p
m
=
5
q
p
m
=
−
r
5
(7)
4
(
v
＋
w
)
[
w
]
A
=
u
4
(
v
＋
w
)
u
=
A
v
＋
w
u
A
=
4
w
u
A
=
−
v
4
(8)
[
z
]
x
=
2
(
4
y
＋
z
)
＋
8
2
(
4
y
＋
z
)
=
x
−
8
4
y
＋
z
x
−
8
=
2
z
1
=
x
−
4
y
−
4
2
(9)
3
(
x
＋
y
＋
z
)
[
x
]
S
=
10
3
(
x
＋
y
＋
z
)
10
=
S
x
＋
y
＋
z
10
=
S
3
x
10
=
S
−
y
−
z
3
(10)
7
(
x
＋
y
＋
z
)
[
x
]
S
=
6
7
(
x
＋
y
＋
z
)
6
=
S
x
＋
y
＋
z
6
=
S
7
x
6
=
S
−
y
−
z
7