We have the system of equations:

Since we have two equations that are equal to y, we can set them equal to each other.

Lets add 1 to both sides of the equation.

Subtract x from both sides of the equation.

Divide both sides of the equation by 2.

Now, we can substitute x = -3 back into either equation in order to find its corresponding y-value.

Simplify this equation...

The solution to this system of linear equations is (-3, -10).