gọi số đó là :x
ta có : x-27=0
x=0+27
x=27
vậy số đó là 27
Gọi số cần tìm là a
\(\Rightarrow\)a - 27 = 0
a = 0 + 27
a = 27
Vậy số cần tìm là 27
Gọi số cần tìm là x.
Theo đề ra ta có : x - 27 = 0
=> x = 27 + 0 = 27
Vậy số cần tìm là 27
Ta có :
x - 27 = 0
x = 0 + 27
x = 27
Vậy số cần tìm là : 27
Theo đề bài,ta có :
x - 27 = 0
x = 0 + 27
x = 27
Vậy số đó là 27
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