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3 November, 03:32

Resolva pelo método da adição:

{2x + 3y = 26

{3x + 2y = 19

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  1. 3 November, 06:11
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    (6x+9y=78) - (6x+4y=38) = (5y=40) = y=8

    (2x+3 (8) = 26) = (2x+24=26) = (2x=2) = x=2
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