<PRE><B>Question 666698</B>
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Hi,
solve each system by using an augmented matrix. the answer cannot be no solution.
 x+y+z=-2
 2x-y-z=-1
 3x+2y+4z=-15
 the answers should be x=-1 y=4 z=-5
 please show steps of solution

&lt;html&gt;&lt;body link=&quot;blue&quot;&gt;&lt;p&gt;&lt;a href=&quot;http://www.math.odu.edu/~bogacki/cgi-bin/lat.cgi?cmd=sys;m1_1=1;m1_2=1;m1_3=1;m1_4=-2;m2_1=2;m2_2=-1;m2_3=-1;m2_4=-1;m3_1=3;m3_2=2;m3_3=4;m3_4=-15;curn=3;curn=4;vdat=3;vdat=R3;whid=V;whid=1;submit21=Submit&amp;hideops=0&quot;&gt;solution&lt;/a&gt;&lt;/p&gt;</PRE>