Question 867083
a+b+c=5000
.01a+.03b+.08c=144
.01a-.03b+.08c=0

Add (-1/100 * row1) to row2
1	 1	 1	 5000
0	 1/50	 7/100	 94
1/100	 -3/100	 8/100	 0

Add (-1/100 * row1) to row3
1	 1	 1	 5000
0	 1/50	 7/100	 94
0	 -1/25	 7/100	 -50

Divide row2 by 1/50
1	 1	 1	 5000
0	 1	 7/2	 4700
0	 -1/25	 7/100	 -50

Add (1/25 * row2) to row3
1	 1	 1	 5000
0	 1	 7/2	 4700
0	 0	 21/100	 138

Divide row3 by 21/100
1	 1	 1	 5000
0	 1	 7/2	 4700
0	 0	 1	 4600/7

Add (-7/2 * row3) to row2
1	 1	 1	 5000
0	 1	 0	 2400
0	 0	 1	 4600/7

Add (-1 * row3) to row1
1	 1	 0	 30400/7
0	 1	 0	 2400
0	 0	 1	 4600/7

Add (-1 * row2) to row1
1	 0	 0	 13600/7
0	 1	 0	 2400
0	 0	 1	 4600/7


*[invoke cramers_rule_3x3 1,+1,+1,5000,.01,+.03,+.08,144,.01,-.03,+.08,0]