Question

If ad is not equal to bc then find whether the pairs of linear equations ax+by=p and cx+dy=q has no solution , unique solution or infinity many solutions​

Answer 1

Answer:

$ax + by = q \\ ax = q - by \\ x \: = q - by \div a \\ \\ cx + dy = q \\ c x= q - dy \\ x = q - dy \div c$

Answer 2

the answer is unique solution