SOLUTION: Solve the following system of equations using substitution. y = 2 x- 2 -4x-y = 26

    y = 2x - 2     (1)

    -4x - y = 26   (2)


You are lucky !!  They just expressed "y" via "x" in the first equation,

and all you need is to substitute this expression y = 2x-2 from the first equation to the second.

By doing it, you get from the second equation


    -4x - (2x-2) = 26.


Simplify and find x


    -4x - 2x + 2 = 26

    -6x          = 26 - 2

    -6x          = 24

      x          =  = -4.


Now, when you just know x, substitute its value into equation (1).  You will get


    y = 2*(-4) - 2 = -8 - 2 = -10.


ANSWER.  x= -4,  y= -10.