-20 + 4y = -8
-20 – 2y = 4
Find the solution to the system of equations shown above by graphing

The solutions are x=0 and y= -2, if the given equations are and .

Step-by-step explanation:

The given is,

                    ...............................(1)

                     .................................(2)

Step:1

          To find the values of x and y, we subtract the equation (1) and (2)

               ( - )

         Subtraction of the Eqn (1) and (2) becomes,

         Substitute the value of y in Equation (2),

                                                      x = 0

Step:2

         Check for solution,

         Substitute the values of X and y,

                                                    -8 = -8

         Both sides are equal so the values of x = 0 and y = -2 are equal.

Result:

             The solutions are x=0 and y= -2, if the given equations are and .