tim x

\(\left(x-1\right)+\left(x-2\right)+\left(x-3\right)=2007\)

1 câu trả lời

\(\Leftrightarrow x-1+x-2+x-3=2007\)

\(\Leftrightarrow3x-6=2007\)

\(\Leftrightarrow3x=2013\)

\(\Leftrightarrow x=671\)