Question

how can we find infinite numbers of solution

Answer 1

we can find infinite no. of sollection when
a1/a2=b1/b2=c1/c2
in that a1 is the co efficient of
${x}^{ 2}$
and like that b1 is the co efficient of x ans c1 is the condtant term

Answer 2

For doing so

First compare it by general form of linear equation

i.e a1x+b1y+c1=0 ; a2x+b2y+c2=0

Now find a1/a2, b1/b2, c1/c2

If three cases are equal then it will have infinite number of solution