# How do you solve: xy - 5 = k for y?

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• Anonymous
8 years ago

x*y-5=k

x*y=k+5

divide x by both sides

y=(k+5)/(x)

Source(s): calc 2
• 8 years ago

xy - 5 = k

Add 5 to both sides: xy -5 (+5) = k + 5

Now you have: xy = k + 5

Divide both sides by x: xy/x = (k+5)/x

This gives you:

y = (k + 5) over x

Source(s): My vague recollection of high school math. Which means I could totally be wrong, btw. Edit: Nvm, it is indeed correct.
• ?
Lv 5
8 years ago

I'll just do it you can see what I did

xy-5=k

xy=k+5

Y=(k+5)/x