Решите пж 2х+5у=-8 и 2х+3у=-4

Question

Решите пж 2х+5у=-8 и 2х+3у=-4

Answer 1

2х+5у= -8
2х+3у= -4 *(-1)

2х+5у= -8
-2х-3у=4

2у= -4
2х+5у= -8

у= -2
х=1