Question

Tìm số abc biết  abc0 + 282 = abc

Answer 1

\(abc0+282=abc\)

\(\Rightarrow abc\times10+282=abc\)

\(\Rightarrow282=abc-abc\times10\)

\(\Rightarrow282=-9\times abc\)

\(\Rightarrow abc=282:\left(-9\right)\)

\(\Rightarrow abc=\frac{-282}{9}\)