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d2jsp Forums > Off-Topic > International > Dansk > Matimatik Hjælp :-d > Ligning Med 2 Ubekendte
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Joined: Feb 25 2006
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Oct 24 2011 04:54am
Ved brug af elimination:
y-x=1
x+2y=8

2y - 2x = 2

2y - 2y + x + 2x = 8 - 2
3x = 6
x = 2

y = 3
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