((x-80)/1,1)=0,4198

X= the letter after W, but before Y

\(\frac{(x-80)}{1,1}= 0,4198\)

\((x-80)=0,4198*1,1\)

\((x-80)=0.46178\)

\(x= 0.46178 +80\)

\(x=80.46178\)