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Byju's Answer
Standard XII
Mathematics
Method of Intervals
Mark the corr...
Question
Mark the correct alternative in the following question:
If
x
-
2
3
=
2
x
-
1
3
-
1
,
then
x
=
a
2
b
4
c
6
d
8
Open in App
Solution
As
,
x
-
2
3
=
2
x
-
1
3
-
1
⇒
x
-
2
3
-
2
x
-
1
3
=
-
1
By
transposing
2
x
-
1
3
to
LHS
⇒
x
-
2
-
2
x
-
1
3
=
-
1
⇒
x
-
2
-
2
x
+
1
3
=
-
1
⇒
-
x
-
1
3
=
-
1
⇒
-
x
-
1
=
-
1
×
3
By
transposing
3
to
RHS
⇒
-
x
-
1
=
-
3
⇒
-
x
=
-
3
+
1
By
transposing
-
1
to
RHS
⇒
-
x
=
-
2
∴
x
=
2
Hence, the correct alternative is option (a).
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0
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