[Steps Shown] Find the inverse of A algebraically. Show all work.
Question: Find the inverse of A algebraically. Show all work.
\[A=\left[\begin{array}{ccc} 1 & 2 & 2 \\ 3 & 7 & 9 \\ -1 & -4 & -7 \end{array}\right]\]
Deliverable: Word Document 
![[Solution] Use the determinant of the coefficient](/images/solutions/MC-solution-library-73673.jpg "[Solution] Use the determinant of the coefficient matrix of the")
[Solution] Use the determinant of the coefficient matrix of the
(Solution Library) Do the three lines 2 x_1+3 x_2=-1,6 x_1+5 x_2=0, and
![[Solution Library] Determine if b is a](/images/solutions/MC-solution-library-73675.jpg "[Solution Library] Determine if b is a linear combination of the vectors")
[Solution Library] Determine if b is a linear combination of the vectors
(See Solution) Let u=[c4 , -1 , 4] and A=[ccc2 5 -1 , 0 1 -1 , 1
![[Steps Shown] Write the following system first](/images/solutions/MC-solution-library-73677.jpg "[Steps Shown] Write the following system first as a vector equation")
[Steps Shown] Write the following system first as a vector equation
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