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x+ 2y-7=0, (k-1)x+(k+1)y=(k+1) Related: Introduction - Pair of Linea...
Since these equationa have no solutions:
a1/a2 =b1/b2�c1/c2 i.e parallel line
a^1=1 b1=2 c1=-3
a^2=k-1 b2=k+1 c2=-(k+2)
1/k-1 = 2/k+1 � -3/-k-2
k+1 =2(k-1)
k+1 = 2k-2
2k-k=2+1
k=3
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x+ 2y-7=0, (k-1)x+(k+1)y=(k+1) Related: Introduction - Pair of Linear Equations in Two Variables, CBSE, Class 10, Mathematics
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