Question

for what value of 'a'does the following pair of linear equations have infinitely many solutions?4x-3y-(a-2)=0;8x-6y-a=0​

Answer 1

Answer:

a1=4,a2=8

b1=-3, b2=-6

c1= -(a-2), c2= -a

In infinitely many solution

a1/a2=b1/b2=c1/c2

==>4/8= -3/ -6= -(a-2)/-a

==>1/2=a-2/a

==>a=2(a-2)

==>a=2a-4

==>a=4