720:[41-(2x+5)]=40
720:[(41-(2*x-5)]=40
720:[41-(2.X-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:[(41-(2*x-5)]=40
720:[41-(2.X-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 : [ 41 - ( 2.x - 5 ) ] = 40
trả lời nhanh giùm mình nhé
720 : [ 41 - ( 2x - 5 ) ] = 40
41 - ( 2x - 5 ) = 720 : 40
41 - ( 2x - 5 ) = 18
2x - 5 = 41 - 18
2x - 5 = 23
2x = 28
x = 14
k nha , minh k lai
720/[41-(2x-5)]=40
<=>41-(2x-5)=18
2x-5=23
x=14.
3636/(12x-91)=36
12x-91=101
12x=192
x=16.
Nguồn:xmen
aihihi
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k mk nhé
\(720:\left[41-\left(2x-5\right)\right]=40\)
\(\Leftrightarrow\left[41-\left(2x-5\right)\right]=720:40\)
\(\Leftrightarrow41-\left(2x-5\right)=18\)
\(\Leftrightarrow2x-5=41-18\)
\(\Leftrightarrow2x-5=23\)
\(\Leftrightarrow2x=28\)
\(\Leftrightarrow x=14\)
720: ( 41-(2 nhân x - 5)=40 Tìm x
Tìm x biết
C).720:[41-(2.x-5)]=40
D). 3.x + 8.x -30=25
\(720:\left[41-\left(2x-5\right)\right]=40\) \(3x+8x-30=25\)
\(41-\left(2x-5\right)=18\) \(3x+8x=55\)
\(2x-5=23\) \(11x=55\)
\(2x=28\) \(x=5\)
\(x=14\)
92-x) (5x-20) =0
679;15x+364/x =17
720:(41-(2x-5) ) =40
720:[41-(2x-5)]=40
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: \(x=14\)
720 : [ 41 - (2x - 5 )=40
\(720\div[41-\left(2x-5\right)]=40\)
\(720\div\left(41-2x-5\right)=40\)
\(36-2x=720\div40\)
\(36-2x=18\)
\(2x=18\)
\(x=9\)
\(720:\left[41-\left(2x-5\right)\right]=40\)
\(\Leftrightarrow41-\left(2x-5\right)=720:40\)
\(\Leftrightarrow41-2x+5=18\)
\(\Rightarrow46-2x=18\)
\(\Leftrightarrow2x=28\)
\(\Leftrightarrow x=14\)
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
10 + 2 . x = 16
720 : ( 41 - ( 2 . x -5 ) ) = 40
xin lỗi mk đánh máy tính ko nhán đc ngoặc vuog giúp mk đc ko
\(10+2x=16\)
\(2x=16-10\)
\(2x=6\)
\(x=3\)
vay \(x=3\)
\(720:\left[41-\left(2x-5\right)\right]=40\)
\(720:\left(41-2x+5\right)=40\)
\(46-2x=720:40\)
\(46-2x=18\)
\(2x=46-18\)
\(2x=28\)
\(x=14\)
vay \(x=14\)
a) <=> 2x=6
<=>x=3
b)41-(2x-5)=18
<=>2x-5=23
2x=28
x=14
mk ko ghi đề nha chúc bn học tốt
10+2.x=16 hãy kích cho những người chi thức
2.x=16-10
2.x=6
x=6:2
x=3