Simplify the left side of the equation.
[tex]\begin{gathered} (-3)+(-8)-4=-3-8-4 \\ =-15 \end{gathered}[/tex]Simplify the right side of equation.
[tex]\begin{gathered} (-3)-8-4=-3-8-4 \\ =-15 \end{gathered}[/tex]Both side of equation give same results so Hugo is correct.
