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Question

If x=-2 and y=3 is a solution of the equation 3x-5y=k, then the value of k is:

A

-21

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B

-9

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C

-18

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D

19

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Solution

The correct option is A

-21


Given that,

x = -2 and y =3 is the solution of the equation 3x - 5y = k

So,

k = 3(-2) - 5(3)

= -6-15

= -21


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