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I need help regarding a question about matrixes in math can someone please help?

I need help regarding a question about matrixes in math can someone please help?-example-1
User Rawb
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1 Answer

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17 votes

Answer:

Hello,

x=5, y=-3, t=-17, z=-43

Explanation:


\begin{bmatrix}2 & 1 \\3 & 1 \end{bmatrix}*\begin{bmatrix}x & 2z \\y & 3 \end{bmatrix}=\begin{bmatrix}7 &35 \\12 & 3t \end{bmatrix}\\\\\\\begin{bmatrix}2 & 1 \\3 & 1 \end{bmatrix}^(-1)=\begin{bmatrix}-1 & 1 \\3 & 2 \end{bmatrix}\\


\\\\\begin{bmatrix}-1 & 1 \\3 & 2 \end{bmatrix}*\begin{bmatrix}2 & 1 \\3 & 1 \end{bmatrix}*\begin{bmatrix}x & 2z \\y & 3 \end{bmatrix}=\begin{bmatrix}-1 & 1 \\3 & 2 \end{bmatrix}*\begin{bmatrix}7 &35 \\12 & 3t \end{bmatrix}\\\\\\\begin{bmatrix}x & 2z \\y & 3 \end{bmatrix}=\begin{bmatrix}5 & -35+3t \\-3 & 105+6t\end{bmatrix}\\\\

x=5

y=-3

t=-17

z=-43

User Danny Cullen
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