Question

Pair of linear equation 9 x + 12 y + 21 is equal to zero and px + q y + 7 is equal to zero has infinitely many solutions then find the value of p and q

Answer 1

Answer:

Both equation must be equivalent for infinite solutions so p=3 and q=4 now if we multiply the second equation by 3 after putting values of p and q we get equation 1 so

P=3 and q=4