1.5.33 Systems of Algebraic Equations
Condition: Solve by Kramer formulas: \ [\ left \ {\ bein {arry} {l} 2 x+2 y = 7 \\ 2 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.