Question

2)
x2 + y2 = 5,
y6+x2y4=80
​

Answer 1

Ответ:

2x+2y=5

6x+2y4=80

4(x+y)=5

14y=80

y=80:14

x+y=5:4

Answer 2

Ответ:

2x + 2y = 5 6x+2y4=80 4(x + y) = 5 14y = 80 y = 80/14 x + y = 5/4