solve it step by step
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truptipandya:
sorry
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x+2y=0
2x+ky+18=0
a1/a2=b1/b2 not equal to c1/c2
1/2=2/k not equal to 0/-18
1/2=2/k
k=4
2x+ky+18=0
a1/a2=b1/b2 not equal to c1/c2
1/2=2/k not equal to 0/-18
1/2=2/k
k=4
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