Question

Gaseste x din (x:0,31)+1,1=22,5

Answer 1

x:0,31=21,4⇒x:0,31=22,5-1,1⇒x=21,4x0,31⇒x=6,634

Answer 2

     
$(x:0,31)+1,1=22,5 \\ (x:0,31)=22,5-1,1 \\ x=0,31(22,5-1,1)=0,31\;\cdot \;21,4 =\boxed{6,634}$