যদি x + y = 2 এবং x - y = 4 হয় তবে (x, y) = কত?

A (3, -1)

B (-3, 1)

C (-1, 3)

D (1, -3)

Correct Answer: Option A

x + y = 2 ... (1)
x - y = 4 ... (2)

(1) + (2): 2x = 6 → x = 3
x = 3 কে (1) এ বসিয়ে: y = -1