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Linear Systems
medium
0:00.0
Solve for
x
x
x
:
x
+
y
=
10
x + y = 10
x
+
y
=
10
and
x
2
−
y
2
=
40
x^2 - y^2 = 40
x
2
−
y
2
=
40
.
A
7
7
7
B
6
6
6
C
4
4
4
D
3
3
3
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