Solve Systems of Equations Using Matrices · Exercise 12

Perform the indicated operations on the augmented matrices.

$[\begin{array}{rlrlrlr}6& & & -5& & & 2\\ 2& & & 1& & & -4\\ 3& & & -3& & & 1\end{array}|\begin{array}{c}3\\ 5\\ -1\end{array}]$
ⓐ Interchange rows 2 and 3
ⓑ Multiply row 2 by 5
ⓒ Multiply row 3 by $-2$ and add to row 1.

OpenStax, Intermediate Algebra 2e · §4.5 Solve Systems of Equations Using Matrices · Exercise 12