## Linear Algebra and Its Applications (5th Edition)

Simplifying the augmented matrix to triangular form provides the relations: $x_1=\frac{-14}{6}$, $x_2=\frac{-5}{6}$, and $0=\frac{-5}{6}$. This final condition is not true, so there is no $(x_1, x_2)$ such that the equations for the three specified planes are satisfied.