y=2x-2 y=-x=4 solving equations using substitution. i need help on this problem

I assume this is :

y=2x-2 y=-x-4

Substituting  the second equation in the first, we have

-x - 4   =  2x - 2    add 2, x to both sides

-2  = 3x    divide both sides by 3

-2/3 = x      and we can use  y = -x - 4   to find y   →  y = -(-2/3) - 4 = 2/3 - 12/3 = -10/3

Here's a graph of the solution.......https://www.desmos.com/calculator/3sldpkijmp