How many linear equations with one variable whose solution is x = - 5 and coefficient of X is four fifths?

How many linear equations with one variable whose solution is x = - 5 and coefficient of X is four fifths?

It depends on how you define a linear equation with one variable
4x/5+4=0
And 4x / 5 = - 4 is an equation, then there is only one such equation of one variable degree
If we think that the above two equations are different, then there are innumerable one variable linear equations