Question

12x + 13y = 51 & 13x + 12y = 49 when x + y price ??​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

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$The \: Given \: Equation \: Are \\ 12x + 13y \: = 29...(i) \\ 13x + 12y = 21...(ii)$

$Add \: ( I ) \: And \: ( ii ) , \: We \: \: Get$

$12x + 13y = 29 \\ 13x + 12y = 21$

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$25x + 25y = 50 \\ 25(x + y) = 50 \\ x + y = 2$

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