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Byju's Answer
Standard IX
Mathematics
Property 3
Solve the fol...
Question
Solve the following system of equations.
y
−
log
3
x
=
1
,
x
y
=
3
12
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Solution
y
−
log
3
(
x
)
=
1
x
y
=
3
12
y
−
log
3
(
x
)
=
1
→
1
x
y
=
3
12
→
2
x
y
=
3
12
Taking
log
3
both side we get
y
log
3
(
x
)
=
(
12
)
log
3
3
y
(
log
3
x
)
=
12
(
log
3
x
)
=
(
12
y
)
→
3
From
1
and
3
y
−
12
y
=
1
⇒
y
2
−
y
−
12
=
0
(
y
−
4
)
(
y
+
3
)
=
0
y
=
−
3
,
4
From
2
x
4
=
3
12
x
−
3
=
3
12
x
4
=
3
12
(
x
)
=
3
12
/
−
3
x
=
3
12
/
4
x
=
3
−
4
x
=
3
3
(
x
,
y
)
:
(
3
−
4
,
−
3
)
(
3
3
,
4
)
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