Question

$\left \{ {{ x + y = 5} \atop {x^{2} - y^{2}=5}} \right.$ ????

Answer 1

x = 5 -y

25 -10y +y² -y² = 5

25 -5 = 10y

20/10 = y

2 = y

x = 5 -2

x = 3

{3 , 2}