\(x:\left[\left(1800+600\right):30\right]=560:\left(315-35\right)\)

\(x:\left[2400:30\right]=560:280\)

\(x:80=2\)

\(x=2\times80\)

\(x=160\)

\(X:80=560:280\)

\(X:80=2\)

\(X=80.2=160\)

\(x:\left[\left(1800+600\right):30\right]=560:\left(315-35\right)\)

\(\Rightarrow x:\left[2400:30\right]=560:280\)

\(\Rightarrow x:80=2\)

\(\Rightarrow x=2\times80\)

\(\Rightarrow x=160\)

Vậy x = 160

_Chúc bạn học tốt_

x:[(1800+600):30]=560:(315-35)

x : (2400 : 30) = 560 : 280

x : 80 = 2

x= 160

x : [ ( 1800 + 600 ) : 30 ] = 560 : ( 315 - 35 )

x : ( 2400 : 30 ) = 560 : 280

x : 80 = 2

x = 2 x 80

x = 160

 Vậy x = 160

x : [ ( 1800 + 600 ) : 30 ] = 560 : ( 315 - 35 )

x : ( 2400 : 30 ) = 560 : 280

x : 80 = 2

x = 2 x 80

x = 160

x : [(1800 + 600) : 30] = 560 : (315 - 35)

x : (2400 : 30) = 560 : 280

x : 80 = 2

x = 2 x 8 0

x = 160 

Bằng 160,.đúng rồi!!!

x:(2400: 30) = 560 : 280

x: 80 = 2

x       = 2.80

x       = 160

Vậy x = 160

=> x : (2400 : 30) = 560 : 280

=> x : 80 = 2

=> x = 2 x 80

=> x = 160.

k mình nhé

mặc dù cuối năm 2016 mình mới trả lời bn.

\(x:\left[\left(1800+600\right):30\right]=560:\left(315-35\right)\)

\(\Rightarrow x:\left(2400:30\right)=560:280\)

\(\Rightarrow x:80=2\)

\(\Rightarrow x=2.80\)

Vậy x=160.

a. x : [( 1800 + 600 ) : 30] = 560 : (315 - 35)

x : [2400 : 30] = 560 : 280

x : 80 = 2

x = 2 . 80

x = 160

b. [( 250 - 25 ) : 15] : x = ( 450 - 60 ) : 130

= [ 225 : 15 ] : x = 390 : 130

= 15 : x = 3

x = 15 : 3

x = 5