2x-6y-4y+8-5x+y-11= x=minus 1 i jedna trzecia y=jedna dziewiąta

2x-6y-4y+8-5x+y-11= -3x-9y-3 -3* (- ⁴/₃) -9* ¹/₉ -3 = 4-1-3 = 0 x= - 1 ⅓ = - ⁴/₃ y= ¹/₉

2x-6y-4y+8-5x+y-11= 3x-9y-3= 4-1-3= 0