［文字サイズの変更］
▼
▲
©2024 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)
[
c
]
a
=
9
(
b
＋
c
)
(2)
(
b
＋
c
)
h
[
b
]
a
=
5
(3)
[
z
]
x
=
3
(
5
y
＋
z
)
＋
3
(4)
q
＋
r
[
q
]
p
=
10
(5)
9
(
v
＋
w
)
[
v
]
A
=
u
(6)
y
＋
z
[
z
]
x
=
3
(7)
4
(
y
＋
z
)
[
y
]
S
=
x
(8)
10
(
v
＋
w
)
[
w
]
A
=
u
(9)
[
w
]
u
=
5
(
6
v
＋
w
)
＋
8
(10)
[
c
]
a
=
8
(
5
b
＋
c
)
＋
8
©2024 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
[
c
]
a
=
9
(
b
＋
c
)
9
(
b
＋
c
)
=
a
b
＋
c
1
=
a
9
c
1
=
a
−
b
9
(2)
(
b
＋
c
)
h
[
b
]
a
=
5
(
b
＋
c
)
h
5
=
a
b
＋
c
5
a
=
h
b
5
a
=
−
c
h
(3)
[
z
]
x
=
3
(
5
y
＋
z
)
＋
3
3
(
5
y
＋
z
)
=
x
−
3
5
y
＋
z
x
−
3
=
3
z
1
=
x
−
5
y
−
1
3
(4)
q
＋
r
[
q
]
p
=
10
q
＋
r
10
=
p
q
＋
r
=
10
p
q
=
10
p
−
r
(5)
9
(
v
＋
w
)
[
v
]
A
=
u
9
(
v
＋
w
)
u
=
A
v
＋
w
u
A
=
9
v
u
A
=
−
w
9
(6)
y
＋
z
[
z
]
x
=
3
y
＋
z
3
=
x
y
＋
z
=
3
x
z
=
3
x
−
y
(7)
4
(
y
＋
z
)
[
y
]
S
=
x
4
(
y
＋
z
)
x
=
S
y
＋
z
x
S
=
4
y
x
S
=
−
z
4
(8)
10
(
v
＋
w
)
[
w
]
A
=
u
10
(
v
＋
w
)
u
=
A
v
＋
w
u
A
=
10
w
u
A
=
−
v
10
(9)
[
w
]
u
=
5
(
6
v
＋
w
)
＋
8
5
(
6
v
＋
w
)
=
u
−
8
6
v
＋
w
u
−
8
=
5
w
1
8
=
u
−
6
v
−
5
5
(10)
[
c
]
a
=
8
(
5
b
＋
c
)
＋
8
8
(
5
b
＋
c
)
=
a
−
8
5
b
＋
c
a
−
8
=
8
c
1
=
a
−
5
b
−
1
8