What are the coordinates of a point if the equation is -3x-3y=3 and y=-5x-17?

What are the coordinates of a point if the equation is   -3x-3y=3  and  y=-5x-17  ?

$$\begin{array}{lrcrr|} \hline (1) & y &=&\textcolor[rgb]{1,0,0}{ -5x-17 }&\\ \hline (2) & -3x-3y &=& 3 &\qquad | \quad :(-3)\quad \\ (2) & x+y &=& -1 &\\ (1) \text{ in } (2) & x+\textcolor[rgb]{1,0,0}{(-5x-17)} &=& -1 & \\ & x-5x-17 &=& - 1 & \\ & -4x-17 &=& -1 & \qquad | \quad *(-1)\quad \\ & 4x+17 &=& 1 & \\ & 4x+17 &=& 1 & \qquad | \quad -17 \quad \\ & 4x &=& 1-17 & \\ & 4x &=& -16 & \\ & 4x &=& -16 & \qquad | \quad :4 \quad \\ & x &=& -4 &\\ \hline \text{ in } (2) & -4+y &=& -1 & \qquad | \quad +4 \quad \\ & y &=& -1+4 & \\ & y &=& 3 &\\ \hline \end{array}$$

x = -4  and y = 3