Question

please, how can I solve for Y? y=4-x

Answer 1

y= 4 - x

You've already solved for y.

Answer 2

I do not know how to make it to a slope form. like, y=mx+b

Answer 3

y and x can be any number, that's a hint, you dont have to take my edvice im a kid.

Answer 4

This equation is already in slope-intercept form(Or at least the closest you're getting to it)