If the point (k, -3 ) lies on the line 3x + 2y = 9, then the value of k is ______

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Solution

The correct option is D 5
A point lies on a line if its coordinates satisfies the equation of the line.

Substitute the cordinates (k ,-3) in the equation of line, 3x + 2y = 9
$\to$ 3(k) + 2(-3) = 9
$\to$ 3k = 15
$\to$ k = 5

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