16.-Linear-Algebra-by-Kenneth-Hoffman · Problem 5.4.2
Determinants
Mathematics — Linear Algebra · cramers-rule
Problem
Use Cramer's rule to solve each of the following systems of linear equations over the field of rational numbers.
((a)) x+y+z=112x−6y−z=03x+4y+2z=0.
((b)) 3x−2y=73y−2z=63z−2x=−1.