I saw this formula in DSGE papers to calculate the steady state of Capital rate.My question is that how this equation is derived?

Rk=Rn-(1-delta)

delta is depreciation rate in economy.

Rk is steady state of capital rate.

Rn is steady state of bonds rate.

I know that Rn=1/beta

This equation’s answer is

Rk=1/beta-(1-delta)