Solve this system of equation algebracally y+x=19-x2 x+y=80

The answer is  y = 80± and    x = ±

Step-by-step explanation:

   We need to solve this system of equations algebraically

   y + x = 19  - ..............................................(1)

   x+y = 80 ...............................................................................(2)

   Substituting equation (2) in equation  (1)

   80 = 19 -  

   -61 =

   x = ±

   Where i is the imaginary

  Then the value of y = 80±

   This is the solution to this system of equations