### Getting a function from a symbolic expression (i.e. "y = x+2")

Hi all,

I'm having trouble understanding how to solve the following problem. Let's say, for instance, that I have an expression

a = y - 2 == x

If I wish to solve this for y,

b = solve(a, y)

This returns another object of type Expression that looks like

"y = x + 2"

My question is, is it possible to obtain a callable symbolic expression x --> x + 2 from this result, b?

I'm trying to solve an implicit equation for a variable and obtain a plottable/differentiable etc. result