Prosze metoda przeciwnych wspolczynnikow, a najlepiej obyma ;) -9x+2y=14 5x-8y=12
-9x+2y=14/*(4)
5x-8y=12
-36x+8y=56
31x=68
x=68/31
5* 68/31 - 8y = 12
340/31-12=8y
y= -0.129
-9x+2y=14/*4
+-------------
-31x=68/*(-1)
31x=-68/:31
x=
-9x+2y=14/:2
-4,5x+y=7/+4,5x
y=7+4,5x
5x-8(7+4,5x)=12
5x-56-36x=12/+56
-31x=68
taka sama końcówka
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-9x+2y=14/*(4)
5x-8y=12
-36x+8y=56
5x-8y=12
31x=68
x=68/31
5* 68/31 - 8y = 12
340/31-12=8y
y= -0.129
-9x+2y=14/*4
5x-8y=12
-36x+8y=56
5x-8y=12
+-------------
-31x=68/*(-1)
31x=-68/:31
x=
-9x+2y=14/:2
5x-8y=12
-4,5x+y=7/+4,5x
5x-8y=12
y=7+4,5x
5x-8y=12
y=7+4,5x
5x-8(7+4,5x)=12
y=7+4,5x
5x-56-36x=12/+56
y=7+4,5x
-31x=68
taka sama końcówka