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Question

If x = 3, y = 2 is a solution of the equation 5x - 7y = k, find the value of k and write the resultant equation.

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Solution

Given equation 5x7y=k and solution is x=3 and y=2
Then 5x7y=k
Put the value of x=3 and y=2 we get
5×37×2=k
1514=k
k=1

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