If $217 x + 131 y = 913$ and $131 x + 217 y = 827$ , then the value of $x + y$ is __________?

8

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5

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7

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Solution

The correct option is B $5$
Adding the two equations, we get
$348 (x + y) = 1740$
$\Rightarrow (x + y) = 5$

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Similar questions

217 x + 131 y = 913

131 x + 217 y = 827

217 x + 131 y = 913

131 x + 217 y = 827

217 x + 131 y = 913

131 x + 217 y = 827

217 x + 131 y = 913

131 x + 217 y = 827

217 x + 131 y = 913, 131 x + 217 y = 827 .

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