# B Inverse Function

1. May 31, 2016

### gede

Please take a look in below image. How do they get 2y = x + 2?

2. May 31, 2016

### Merlin3189

They simply multiply every term by 2.
2 * y -> 2y
2 * $\frac12$ x -> x
2 * 1 -> 2