720:[41-(2x-5)]=40
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\(720\div[41-\left(2x-5\right)]=40\)
\(720\div\left(41-2x-5\right)=40\)
\(36-2x=720\div40\)
\(36-2x=18\)
\(2x=18\)
\(x=9\)
\(720:\left[41-\left(2x-5\right)\right]=40\)
\(\Leftrightarrow41-\left(2x-5\right)=720:40\)
\(\Leftrightarrow41-2x+5=18\)
\(\Rightarrow46-2x=18\)
\(\Leftrightarrow2x=28\)
\(\Leftrightarrow x=14\)
720 : [41 - (2x - 5)] = 2³.5
720 : [41 - (2x - 5)] = 8.5
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
\(720:\left[41-\left(2x-5\right)\right]=2^3\cdot5\)
\(\Rightarrow720:\left(41-2x+5\right)=8\cdot5\)
\(\Rightarrow720:\left(46-2x\right)=40\)
\(\Rightarrow46-2x=720:40\)
\(\Rightarrow46-2x=18\)
\(\Rightarrow2x=46-18\)
\(\Rightarrow2x=28\)
\(\Rightarrow x=28:2\)
\(\Rightarrow x=14\)
720 : \([\)41 - (2x - 5)\(]\)= 120
41 - (2x -5) = 720 : 120
41 - (2x -5) = 6
2x - 5 = 41 - 6
2x - 5 = 35
2x = 35 + 5
2x = 40
x = 40 : 2
x= 20
Ta có: \(720:\left[41-\left(2.x-5\right)\right]=40\)
\(\Rightarrow41-\left(2.x-5\right)=720:40=18\)
\(\Rightarrow2.x-5=41-18=23\)
\(\Rightarrow2.x=23+5=28\)
\(\Rightarrow x=28:2=14\)
Vậy: \(x=14\)