x - y = 2 2x + 2y = 4 tentukan himpunan penyelesaian menggunakan metode invers dan determinan

x-y=2;2x-2y=4 

Infinitely many solutions

System of Linear Equations entered :

  [1] x - y = 2   [2] 2x - 2y = 4

Solve by Substitution :

// Solve equation [1] for the variable  x  
 

[1] x = y + 2

// Plug this in for variable  x  in equation [2]

  [2] 2•(y +2) - 2y = 4   [2] 0 = 0 => Infinitely many solutions