if x=5 and y=3 is a solution of 3x+ky=3 find k
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3x+ky=3
put the values of x , y
3(5)+k(3)=3
15+3k=3
3k=3-15
k=-12/3
k=-4
put the values of x , y
3(5)+k(3)=3
15+3k=3
3k=3-15
k=-12/3
k=-4
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