720 : [ 41 - ( 2 x x -5 ) =120
41 - ( 2 x x - 5 ) = 720 : 120
41 - ( 2 x \(x\) -5 ) =6
2 x \(x\) -5 = 41 - 6
2 x \(x\) - 5 = 35
2 x \(x\) = 35+5
2 x \(x\)=40
\(x\) = 40 : 2 = 20
Vậy x = 20
Ủng hộ nhé ^^
720 : [ 41 - ( 2 x X - 5 ) ] = 120
41 - ( 2 x X - 5 ) = 720 : 120
41 - ( 2 x X - 5 ) = 6
2 x X - 5 = 41 - 6
2 x X - 5 = 35
2 x X = 35 - 5
2 x X = 30
X = 30 : 2
X = 15
Học tốt nhé bạn !
720÷[41-(2×x-5)]=120
41-(2.x-5)=720:120
41-(2.x-5)=6
2.x-5=41-6
2.x-5=35
2.x=35+5
2.x=40
x=40:2
x=20
Vậy.............................................
720 : [41 - (2 x X - 5)] = 120
41 - ( 2 x X - 5)= 720 : 120
41 - ( 2 x X - 5) = 6
2 x X - 5 = 41 - 6
2 x X - 5 = 35
2 x X = 35 + 5
2 x X = 40
X = 40 : 2
X = 20
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
Vậy x = 20