Question

Giúp mình bài tìm X này với ạ

X x 2011 - X = 2011 + 2009 + 2011

 

Answer 1

X x 2011 - X x 1 = 2011 x 2 +2009

X x ( 2011 - 1 ) = 4022 + 2009

X x 2010 = 6031

X = 6031

      2010

Answer 2

X x 2011 - X = 2011 + 2009 + 2011

X x ( 2011 - 1 ) = 2011 x ( 2009 + 1 )

X x 2010 = 2011 x 2010 

X = 2011

Answer 3

x * 2011 - x = 2011 + 2009 + 2011

x * ( 2011 - 1 ) = 2011 * ( 2009 + 1 )

x * 2010 = 2011 x 2010

x = 2011

Answer 4

Xét A=Xx2011-x=Xx(2011-1)=Xx2010

Xét B=2011+2009+2011=6031

\(\Rightarrow\)Xx2010=6031

\(\Rightarrow\)X=3  1phần2010

Answer 5

X x 2011 - X = 2011 + 2009 + 2011

X x ( 2011 - 1 ) = 6031

X x 2010 = 6031

X = 6031 : 2010 

X = \(\frac{6031}{2010}\)