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Mathematics
Mathematics
Problem
In
△
A
B
C
\triangle ABC
△
A
B
C
, D and E are points on the sides AB and AC respectively, such that
D
E
∥
B
C
DE \parallel BC
D
E
∥
B
C
. If
A
D
=
x
AD = x
A
D
=
x
,
D
B
=
x
−
2
DB = x - 2
D
B
=
x
−
2
,
A
E
=
x
+
2
AE = x + 2
A
E
=
x
+
2
and
E
C
=
x
−
1
EC = x - 1
E
C
=
x
−
1
, find the value of
x
x
x
.
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