Answer:
∅ no solution
Step-by-step explanation:
Given the two equations:
x - y = 0 and x - y - 2 = 0, add '2' to both sides of the second equation:
x - y - 2 + 2 = 0 + 2 or x - y = 2
So, this is saying that 'x - y' can be equal to both 0 and 2, which isn't possible. To check your work, set one equation equal to the other variable, then substitute and solve:
x = 2 + y
2 + y - y = 0
2 ≠ 0
no solution is possible
