Juan solves the system of equations by forming a matrix equation.
−4x+y=9
3x+2y=7
He multiplies the left side of the coefficient matrix by the inverse matrix.
How does he proceed to the solution?
Drag the choices to correctly complete Juan's process.
+121 In the first blank spot goes
\(\Big\lbrack \begin{matrix} 9\\ 7 \end{matrix} \Big \rbrack \)
In the second blank spot goes
\(-\frac{1}{11} \bigg \lbrack \begin{matrix} 2 &-1\\ -3 &-4 \end{matrix} \bigg\rbrack\)
In the third blank box place
\(-\frac{1}{11} \bigg\lbrack \begin{matrix} 11\\ -55 \end{matrix} \bigg\rbrack\)
and into the last empty box drag
\( \bigg\lbrack \begin{matrix} -1\\ 5 \end{matrix} \bigg\rbrack\)
Hope this helps you.
