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**1. Homework Statement**

**2. Homework Equations**

i1+i2-i3=0

50i1+75i3=1

100i2-75i3=1

**3. The Attempt at a Solution**

matrix A=1 1 -1

0 100 -75

matrix A=1 1 -1

0 100 -75

50 0 75

matrix B= 0

1

1

i1= -6ma

i2= 23ma

i3= 17ma

My instructor gets i1= 6ma, i2= 3ma, i3= 9ma. Please advise!