\(2087-x:27=2015\)
\(\Rightarrow\) \(x:27=2087-2015\)
\(\Rightarrow\) \(x:27=66\)
\(\Rightarrow\) \(x=66.27\)
\(\Rightarrow\) \(x=1782\)
Vậy \(x=1782\)
\(2087-x:27=2015\)
\(\Rightarrow x:27=2087-2015\)\(\Rightarrow x:27=72\Rightarrow x:72=72.27\Rightarrow x=1944\)