Khan exercises Maths Tools 1
Given is a linear system of the form (334∣−7−4−42∣−2024−3∣26)\begin{pmatrix}3 & 3 & 4 & \bigl | &-7 \\ -4 & -4 & 2 & \bigl | &-20 \\ 2 & 4 & -3 & \bigl | &26 \end{pmatrix} 3−423−4442−3−7−2026 with the unique solution (XYZ) \begin{pmatrix} {\color{red}X} \\ {\color{blue}Y} \\ Z \end{pmatrix}XYZ.
(334∣−7−4−42∣−2024−3∣26)\begin{pmatrix}3 & 3 & 4 & \bigl | &-7 \\ -4 & -4 & 2 & \bigl | &-20 \\ 2 & 4 & -3 & \bigl | &26 \end{pmatrix} 3−423−4442−3−7−2026
(XYZ) \begin{pmatrix} {\color{red}X} \\ {\color{blue}Y} \\ Z \end{pmatrix}XYZ
Determine the entries
X=\color{red} X =X=
Y=\color{blue} Y =Y=
Z=Z =Z=