\(\overline{2ab}+36=\overline{ab2}\)
\(\Rightarrow2\times100+\overline{ab}+36=\overline{ab}\times10+2\)
\(\Rightarrow2\times100+36=\overline{ab}\times9+2\)
\(\Rightarrow236=\overline{ab}\times9+2\)
\(\Rightarrow236-2=\overline{ab}\times9\)
\(\Rightarrow234=\overline{ab}\times9\)
\(\Rightarrow\overline{ab}=234\div9\)
\(\Rightarrow\overline{ab}=26\)
\(\text{Vậy : }\overline{ab}=26\)
\(\text{Học tốt !}\)
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