How to switch XY? For example, Y=2X+ 1 equals X=2Y+ 1? Good people, help! Please. I'm not good at math.
Y=2X+ 1 equals X=2Y+ 1. What you did wrong should be: Y=2X+ 1. If you subtract 1 from both sides at the same time, you will get: Y- 1=2X, and then divide both sides by 2 at the same time, you will get: X = (Y-668