find the slope of this line with equation 5x-2y=8

find the slope in this line with equation 5x-2y-8

Find the slope of this line with equation 5-2y=8

What is the exact equation? You posted thrice (which by the way is not according to the rules of the site) and none of them are the same things!

I assume that the first one was the good one.

Well, in any linear equation in the form Y = mX +c, the slope is given by m. What you need to do therefore is to make y the subject of formula and see what is the coefficient (the number in front) of x.