1.5.46 Systems of algebraic equations
Condition: Solve the system of equations using Cramer's formulas: \( \left\{\begin{array}{l}2 x+4 y=7 \\ 4 x-4 y=9\end{array}\right. \).
Solving systems of algebraic equations by the methods of Gauss, Jordan-Gauss, Cramer and using the inverse matrix. Homogeneous and non-homogeneous systems of equations.