Question

If x² + y² =25,ny =12 then find x.​

Answer 1

Step-by-step explanation:

x² + y² =25, xy =12

(x + y)² = x² + y² + 2 xy

= 25 + 2 (12)

= 25 + 24

= 49

(x + y)² = 49

Taking square root on both sides we get

(x + y) = 7

x = 7 - y