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Solution of linear equation in 2 variables

If 3,1 is a s...

Question

If (3,1) is a solution of the equation 3x+2y=k find the value of k.

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Solution

$(3, 1)$ is a solution of the equation $3 x + 2 y = k$

$3 x + 2 y = k$
$=> 3 (3) + 2 (1) = k$
$=> k = 9 + 2 = 11$

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