/sci/ - Science & Math

Hi sci,
I suck at math but acccidentally my way into geophysics research and now i am having trouble with math im applying in matlab to model inverted data from a soil conductivity sensor

So far this is how i understand my issue:

I have to different functions A(x) and B(x)
x represents the sensor readings, A(x) is the true depth that the reading indicates, and B(x) represents the value i get when i input my sensor readings into a partially inverted formula for the depth indicated by the readings.

What is the math strategy i need to use to relate my B(x) values to the real depth values of A(x)?