( x - 50 ) : 45 + 240 = 300
( x - 50 ) : 45 = 300 - 240
( x - 50 ) : 45 = 60
x - 50 = 60 x 45
x - 50 = 2700
x = 2700 + 50
x = 2750
\(\Leftrightarrow\left(x-50\right)\div45=300-240\)
\(\Leftrightarrow\left(x-50\right)\div45=60\)
\(\Leftrightarrow x-50=60\times45\)
\(\Leftrightarrow x-50=2700\)
\(\Leftrightarrow x=2700+50\)
\(\Leftrightarrow x=2750\)
Vậy x = 2750
\(\left(x-50\right):45+240=300\)
\(\Rightarrow\left(x-50\right):45=60\)
\(\Rightarrow x-50=2700\)
\(\Rightarrow x=2750\)
Vậy x = 2750
( x -50) : 45 + 240 = 300
( x-50) : 45 = 300 - 240
(x-50):45 = 60
x - 50 = 60 x 45
x - 50 = 2700
x = 2700+50
x = 2750
( x - 50 ) : 45 + 240 = 300
( x - 50 ) : 45 = 60
x - 50 = 2700
x = 2750
Vậy x =2750