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Systems of Linear Equations
Row reduction, Gaussian elimination, solution structure, rank, and the LU factorization.
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Solve
x
+
y
=
5
x + y = 5
x
+
y
=
5
and
x
−
y
=
1
x - y = 1
x
−
y
=
1
by elimination. What is
x
x
x
?
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x
y
( )
x
n
√
⌫
AC
7
8
9
+
4
5
6
−
1
2
3
×
0
.
a
b
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