x - 280 : 35 = 5 . 54
x - 280 : 35 = 270
x - 280 = 270 x 35
x - 28 = 9450
x = 9450 + 280
x = 9730
cho mk nhe
x - 280 : 35 = 5 . 54
x - 280 : 35 = 270
x - 280 = 270 . 35
x - 280 = 9450
x = 9450 + 280
x = 9730
Vậy x = 9730
Nhớ k nha mik lm đúng rồi!
Ta có: \(x-280:35=5.54\)
\(\Rightarrow x-8=270\)
\(\Rightarrow x=270+8\)
\(\Rightarrow x=278\)
Vậy x = 278
nha m.n
x - 280 : 35 = 5 . 54
x - 280 : 35 = 270
x - 280 = 270 . 35
x-28 = 9450
x = 9450 + 280 = 9730
b) ( x - 280 ) : 35 = 56 : 5
c) x : 15 + 42 = 13 + 25 . 8
x-280:35=5.54
\(\Rightarrow\)x-8=270
\(\Rightarrow\)x=270+8
\(\Rightarrow\)x=278
x-280:35=5.54
x-280:35=270
x-8=270
x=270+8
x=278
x - 280 : 35 = 5 . 54
x - 280 : 35 = 270
x - 280 = 270 . 35
x - 280 = 9450
x = 9450 + 280
x = 9730