Question 131913
Anything you would like it to be.  I'm presuming that you mean the equation to be {{{y=x/5-4}}} rather than {{{y=x/(5-4)}}}, not that it will make any difference in the answer to this question.  This equation shows a relationship between x and y.  x can be any real number (or any complex number for that matter), and that will cause y to take on a particular value.


Had you asked, "What does x have to be for y to be <some value>?" I could give you a specific answer.


You could also ask, "What is the value of y when x is <some value>?" and that would also have a specific answer.


On the off chance that you meant to say, "solve this equation for x in terms of y" I'm going to use my presumptive interpretation of your equation statement:



{{{y=x/5-4}}}


Add 4 to both sides
{{{y+4=x/5}}}


Multiply both sides by 5
{{{5(y+4)=x}}}
{{{5y+20=x}}}
{{{x=5y+20}}}