Answer:
The answer to your question is There is no solution, the lines are parallel.
Step-by-step explanation:
Data
Equation 1 x + y = 2
Equation 2 x + y = -1
Solve for y
Equation 1 y = -x +2
y = - x + 2
Equation 2 y = - x - 1
See the graph below
These lines do not cross, so there is no solution. They are parallel.
If the lines have crossed, there would be a solution.
