<PRE><B>Question 108595</B>
1 0 3 20
0 1 2 -2
0 0 1 4 
What is the solution to the system is?
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Assuming the variables are a, b, c,
The 3rd line implies that c = 4
If c=4 the 2nd line implies b+2c=-2; b+8=-2; b=-10
If c=4 and b=-10 the 1st line implies a + 3c = 20; a+12=20; a=8
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Cheers,
Stan H.</PRE>