Answer with explanation:
The options are

Equation wrote by ,Fiona is:
y = x -5
The equation which has same solution that Fiona has written,will be coincident with the equation of line that Fiona has written.
And,Equation of that line will be:
Multiply equation 1, by any real number , k,where, k≠0.
⇒k y= k x- 5 k
This should be ,equation that had the same solutions as Fiona’s,where k can take any real number but not 0.
None of the Option