1
4.1 Solve the following system of equations using the Gauss elimination method:
Step 4: The matrix is in upper triangular form, apply back-substitution:
x–1x2x3
m21 0.5=
a'22
1.5
0 1.5 1.5
00 3–
x3
7.5
12–
2
1.5
2x111 14⋅()–⋅+1=
x1141–+ 2
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