The given equation is-
[tex]-30=5(x+1)[/tex]First, we use the distributive property
[tex]-30=5x+5[/tex]Then, we subtract 5 on each side
[tex]\begin{gathered} -30-5=5x+5-5 \\ -35=5x \\ \end{gathered}[/tex]At last, we divide the equation by 5
[tex]\begin{gathered} \frac{5x}{5}=\frac{-35}{5} \\ x=-7 \end{gathered}[/tex]