C-05-Q156: A linear equation $ax + b = 0$ with $a \ne 0$ has exactly—

C-05-Q156: A linear equation $ax + b = 0$ with $a \ne 0$ has exactly— | প্রশ্ন করি

A linear equation ax+b=0ax + b = 0ax+b=0 with a≠0a \ne 0a=0 has exactly—