Help plz i can't get it

$$\\
\left{$-5w+11=51$ \hspace{36mm} | $-11$} \\
\left{$-5w = 40$ \hspace{42mm} | $:5$} \\
\left{$-w = 8$ \hspace{48mm} | $*(-1)$} \\
\left{$w = -8$} \\$$

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