Question

{х+у=2
{5х+80у=130.
решите пж ребята!!!!​

Answer 1

Ответ:

$x = \frac{2}{5} \\ y = \frac{8}{5}$

Answer 2

{x=2-y

{5(2-y)+80y=130

{x=2-y

{10-5y+80y=130

{x=2-y

{75y=120

{x=2-y

{y=8/5

{x=2-8/5

{y=8/5

{x=2/5

{y=8/5