1.5.46 Systems of Algebraic Equations
Condition: Solve the system of equations according to Kramer formulas: \ (\ left \ {\ begin {array} {l} 2 x+4 y = 7 \\ 4 x-4 y = 9 \ end {arry} \ 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.