Question
As a matrix equation of the form $A X=B$$$\begin{aligned} 4 x_{1}-3 x_{2} &=2 \\ x_{1}+2 x_{2} &=1 \end{aligned}$$
Step 1
In the first equation, the coefficients of $x_1$ and $x_2$ are 4 and -3 respectively. In the second equation, the coefficients of $x_1$ and $x_2$ are 1 and 2 respectively. Show more…
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As a matrix equation of the form $A X=B$ $$\begin{aligned} 2 x_{1} &+3 x_{3}=\\ x_{1}-2 x_{2}+x_{3} &=-4 \\ -x_{1}+3 x_{2} &=2 \end{aligned}$$
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As a matrix equation of the form $A X=B$ $$\begin{aligned} x_{1}-2 x_{2}+x_{3} &=-1 \\ -x_{1}+x_{2} &=2 \\ 2 x_{1}+3 x_{2}+x_{3} &=-3 \end{aligned}$$
As a matrix equation of the form $A X=B$ $$\begin{array}{r} x_{1}-2 x_{2}=7 \\ -3 x_{1}+x_{2}=-3 \end{array}$$
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