Răspuns:
(x+1)/3 - (y+2)/4 = 3(x-y)/6
4(x+1)/12 - 3(y+2)/12 = 6(x-y)/12
4(x+1) -3(y+2) = 6(x-y)
4x + 4 -3y -6 = 6x -6y
4x -6x = 3y -6y + 6 -4
-2x = -3y + 2
x = (2 -3y)/2
(x-3)/4 - (y+3)/3 = 2y-6
3(x-3) -4(y+3) = 12(2y-6)
3x -9 -4y -12 = 24y -72
3x -28y = -51
3(2 -3y)/2 -28y = -51
3(2 -3y) -56y = -102
6 -9y - 56y = -102
-65y = -108
y = 108/65
x = (2 -3y)/2
x = (2 -324/65)/2
x = 1 - 162/65
x = -97/65
