Question

x * 2013 - x = 2013* 2011 + 2013

Answer 1

      \(x\cdot2013-x=2013\cdot2011+2013\)

\(x\cdot\left(2013-1\right)=2013\cdot\left(2011+1\right)\)

               \(x\cdot2012=2013\cdot2012\)

                             \(x=2013\cdot2012\div2012\)

                             \(x=2013\)

Answer 2

x.2012=2013.2012

Nên x=2013

Answer 3

\(x\times2013-x=2013\times2011+2013\)

\(x\times\left(2013-1\right)=2013\times\left(2011+1\right)\)

\(x\times2012=2013\times2012\)

\(\Rightarrow x=2013\)

Answer 4

X × 2013 - X = 2013 × 2011 + 2013

(=) X ( 2013-1 ) = 2013× ( 2011 + 1 )

(=) X × 2012 = 2013 × 2012

(=) X = 2013

Vậy X = 2013