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Mathematics
Mathematics
Problem
Two adjacent angles share vertex
O
O
O
and a common arm
O
C
OC
O
C
. If the measures of the angles are
5
y
+
20
5y + 20
5
y
+
20
and
3
y
−
4
3y - 4
3
y
−
4
respectively and the non-common arms are known to be collinear, determine
y
y
y
.
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