asset beta someone, company, average, understand

ASSet_MANagemen

asset beta or unlevered beta as i understand is the beta of the company with no debt.

beat asset = beta equity / [1+d/e(1-t)]

so why the asset beta is said to be weighted average of equity and debt beta then. it is not merely equity beta??

i am missing a link in understanding the asset and equity beta concept . can someone explain the concept to me please.

thanks