\(720\div[41-\left(2x-5\right)]=40\)
\(720\div\left(41-2x-5\right)=40\)
\(36-2x=720\div40\)
\(36-2x=18\)
\(2x=18\)
\(x=9\)
\(720:\left[41-\left(2x-5\right)\right]=40\)
\(\Leftrightarrow41-\left(2x-5\right)=720:40\)
\(\Leftrightarrow41-2x+5=18\)
\(\Rightarrow46-2x=18\)
\(\Leftrightarrow2x=28\)
\(\Leftrightarrow x=14\)
720:[41 -(2x-5) =40
41 -(2x-5)=720:40
41 -(2x-5)= 18
2x-5 =41-18
2x-5=23
2x =23+5
2x =28
x =28:2
x =14
