Hello,

I'm doing a problem in static mechanics dealing with the sum of equilibrium forces.

The two equations I come up with are

EFx=T-Nsin20=0

EFy=Ncos20-mg=0

The goal is to solve for T, which has been given to me as T=(mgsin20)/cos20. My question is how does T equate to this? The example I am following along with gives the answer but not the steps required. It says to eliminate N to yield the previous equation for T but I do not understand how T can equal (mgsin20)/cos20. Is this even a system of equations problem or am I looking at it wrong to begin with? any help is appreciated!