Find the value of k if 3, - 4 is a solution of the equation 5x+ky=7
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since 3,-4 is a solution of the equation 5x+ky=7
x=4 & y=-4
therefore
5×3+k×-4=7
-4k=-13
k=13/4
x=4 & y=-4
therefore
5×3+k×-4=7
-4k=-13
k=13/4
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