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5x +6y =11
9x-6y=3
5x+6y=11
dodaje stronami:
9x+5x-6y+6y=3+11
14x=14 /:14
x=1
3x-2y=1
3*1 -2y=1
-2y=1-3
-2y=-2 /:(-2)
y=1
odp.
x=1
y=1