Question

tìm X.  (X-2)  x  3- 270 : 45 = 120

Answer 1

\(\left(x-2\right)\times3-270:45=120\)

\(\Rightarrow\left(x-2\right)\times3-6=120\)

\(\Rightarrow\left(x-2\right)\times3=120+6\)

\(\Rightarrow\left(x-2\right)\times3=126\)

\(\Rightarrow x-2=126:3\)

\(\Rightarrow x-2=42\)

\(\Rightarrow x=42+2\)

\(\Rightarrow x=44\)

Vậy x = 44

_Chúc bạn học tốt_

Answer 2

\(\left(x-2\right)\cdot3-270:45=120\)

\(\left(x-2\right)\cdot3-6=120\)

\(\left(x-2\right)\cdot3=120+6\)

\(\left(x-2\right)\cdot3=126\)

\(x-2=42\)

\(x=44\)