ellevanilla ellevanilla

21-05-2020
Mathematics

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5x+7y=-11 and 5x-3y=19 solve by elimination

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Аноним Аноним

21-05-2020

5x+7y+11=-11+11

5x+7y+11=0

5x-3y-19=19-19

5x-3y-19=0

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