This is the equation of straight line passing through Origin(0,0).
That is , when , x=0 , gives y=0.
The equation contain two variable, x and y and only a single equation of straight line containing x and y .
Put, x=k, where k is any real number.
Gives, y=32k,
→Solution set=(k,32k) ,where k is any real number.
So, there will be infinite solution of the linear equation of line in two variables passing through Origin when Single equation of Line is given.