Question

Solve each linear system. Verify each solution by substituting the coordinates of your solution into both equations.

Answer 1

1x - 1y = 8
1x + 2y = 2
       -3y = 6
        -3    -3
          y = -2
 x - (-2) = 8
   x + 2 = 8
       - 2  - 2
          x = 6
     (x, y) = (6, -2)