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Hovedindhold

Ligninger i ét trin med addition og subtraktion

Vi skal lære at løse en ligning med en ukendt variabel. Det gør vi ved at fjerne alle de ekstra tal ved at lave den modsatte regneoperation på begge sider af ligningen. Dette gør at ligningen forbliver sandt og hjælper os med at finde værdien af den ukendte variabel. Lavet af Sal Khan.

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