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