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Equations & Systems
medium
0:00.0
If
x
+
y
=
5
x + y = 5
x
+
y
=
5
and
2
x
−
y
=
4
2x - y = 4
2
x
−
y
=
4
, what is
y
y
y
?
A
3
3
3
B
2
2
2
C
1
1
1
D
4
4
4
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