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Hovedindhold

Løsninger til ligninger med 2 variable: substitution (gammel)

En gammel video hvor Vi kontrollerer om (3, -4) er en løsning til 5x + 2y = 7 af afløsning x = 3 og y =-4. Lavet af Sal Khan og Montereys Institut for teknologi og undervisning.

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Video udskrift

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