Book Maths Puzzle Algebra

Find the equation of the line parallel to y=5x-2 and passing through the origin.

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I have been working on solving linear systems I cannot figure out where to move and mutilply the numbers my teacher taught us two ways combination and subsitution.here is one promblem and i was wondering if you could explain where to move the numbers and things because our teacher is of no help in this area and doesnt seem like she ever will be.
4x+y=-1
-5x-y= 0 Find the equation of the line that contains the point (0,5) and is perpendicular to the line y= 1/4x