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Equations & Systems
easy
0:00.0
If
x
+
y
=
10
x + y = 10
x
+
y
=
10
and
x
−
y
=
4
x - y = 4
x
−
y
=
4
, what is
y
y
y
?
A
3
B
7
C
6
D
5
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