First you want to combine “like terms” and get the x variable on one side and get the other on the other side to solve for x, so to get the -3x you’ll add 3x to cancel it out then you subtract the 5 giving you 4x= -1, then you’re going to divide by 4 giving you -1/4th. Your final answer will be -1/4th or -0.25. This is the best I can do with the little context you gave me