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Linear Systems
easy
0:00.0
If
x
+
y
=
10
x+y=10
x
+
y
=
10
and
x
−
y
=
10
x-y=10
x
−
y
=
10
, what is
x
x
x
?
A
10
10
10
B
0
0
0
C
20
20
20
D
5
5
5
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