find the value of k for which the pair of linear equation
kx+ 3y = 2k + 1 & 2(K+1)x+9y=7k +1 has
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a1/a2=b1/b2=c1/c2
.°. k/2(k+1)=3/a=3/a=2k+1/7k+1
.°.2k+2=3k
.°.k=2
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