Tìm số nguyên \[x\] biết: \[x + 10 = 2\];
Giải thích
\[x + 10 = 2\]
\[\begin{array}{l}\,\,\,\,\,\,x\,\,\,\,\,\,\,\,\,\,\,\, = \,2\, - 10\\\,\,\,\,\,x\,\,\,\,\,\,\,\,\,\,\,\, = \,\,\, - 8\end{array}\]
Vậy \[x = - 8\].
\[x + 10 = 2\]
\[\begin{array}{l}\,\,\,\,\,\,x\,\,\,\,\,\,\,\,\,\,\,\, = \,2\, - 10\\\,\,\,\,\,x\,\,\,\,\,\,\,\,\,\,\,\, = \,\,\, - 8\end{array}\]
Vậy \[x = - 8\].