Weighted overlay in GEE

[Chathu1985]

Hi,
I wonder that we can do Analytical Hierarchy Process in Google Earth Engine or weighted overlay in Google Earth Engine. I am trying to create an index using SPI, PDSI and SMI. I want to apply weight to each parameter. I already overlay them but without applying the weight.

And also I want to create another index using Slope and LULC. Do I can overlay slope and LULC in GEE.

Thank you
Chathu

[giswqs]

See https://developers.google.com/earth-engine/guides/image_math