［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．
[182-00]
(1)
(
b
＋
c
)
h
[
c
]
a
=
5
(2)
(
y
＋
z
)
r
[
y
]
x
=
9
(3)
9
(
u
＋
v
＋
w
)
[
w
]
A
=
4
(4)
[
b
]
X
=
4
(
a
＋
b
＋
c
)
(5)
(
q
＋
r
)
l
[
q
]
p
=
5
(6)
[
y
]
x
=
6
(
6
y
＋
z
)
＋
6
(7)
[
c
]
a
=
2
(
b
＋
c
)
(8)
[
w
]
u
=
2
(
v
＋
w
)
(9)
[
q
]
p
=
9
(
8
q
＋
r
)
＋
5
(10)
6
(
b
＋
c
)
[
b
]
X
=
a
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
(
b
＋
c
)
h
[
c
]
a
=
5
(
b
＋
c
)
h
5
=
a
b
＋
c
5
a
=
h
c
5
a
=
−
b
h
(2)
(
y
＋
z
)
r
[
y
]
x
=
9
(
y
＋
z
)
r
9
=
x
y
＋
z
9
x
=
r
y
9
x
=
−
z
r
(3)
9
(
u
＋
v
＋
w
)
[
w
]
A
=
4
9
(
u
＋
v
＋
w
)
4
=
A
u
＋
v
＋
w
4
=
A
9
w
4
=
A
−
u
−
v
9
(4)
[
b
]
X
=
4
(
a
＋
b
＋
c
)
4
(
a
＋
b
＋
c
)
=
X
a
＋
b
＋
c
1
=
X
4
b
1
=
X
−
a
−
c
4
(5)
(
q
＋
r
)
l
[
q
]
p
=
5
(
q
＋
r
)
l
5
=
p
q
＋
r
5
p
=
l
q
5
p
=
−
r
l
(6)
[
y
]
x
=
6
(
6
y
＋
z
)
＋
6
6
(
6
y
＋
z
)
=
x
−
6
6
y
＋
z
x
−
6
=
6
6
y
1
=
x
−
z
−
1
6
y
1
1
1
=
x
−
z
−
36
6
6
(7)
[
c
]
a
=
2
(
b
＋
c
)
2
(
b
＋
c
)
=
a
b
＋
c
1
=
a
2
c
1
=
a
−
b
2
(8)
[
w
]
u
=
2
(
v
＋
w
)
2
(
v
＋
w
)
=
u
v
＋
w
1
=
u
2
w
1
=
u
−
v
2
(9)
[
q
]
p
=
9
(
8
q
＋
r
)
＋
5
9
(
8
q
＋
r
)
=
p
−
5
8
q
＋
r
p
−
5
=
9
8
q
1
5
=
p
−
r
−
9
9
q
1
1
5
=
p
−
r
−
72
8
72
(10)
6
(
b
＋
c
)
[
b
]
X
=
a
6
(
b
＋
c
)
a
=
X
b
＋
c
a
X
=
6
b
a
X
=
−
c
6