Question

1)
{2х+2у=3
{2х+у=5  
2)
{3х-3у=5
{2х+у=10
​

Answer 1

Ответ:

1)

$xy = 3 + 2 xy = 6xy$

$xy = 2 + 5xy = 7xy$

2)

$xy = 3 + 5xy = 8xy$

$xy = 10 - 2xy = 8xy$