Question 4
Find the value of k, if x=2,y=1 is a solution of the equation 2x+3y=k.

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Solution

=2x+3y=k
Given
x=2,y=1 is the solution of the given equation.
Putting the value of x and y in the equation 2x+3y=k, we get,
2×2+3×1=k
⇒ k=4+3
⇒ k=7

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