Verified answer

Пошаговое объяснение:

{2х+4у= -2

{3х-у= 1/27 у=3х-1/27

2х+4(3х-1/27)= -2

2х+12х-4/27= -2

14х-4/27= -2 •27

378х-4= -54

378х= -54+4

378х= -50

х= -50/378 = -25/189

у=3•(-25/189) - 1/27= -25/63-1/27=

= -75/189-7/189= -82/189

ответ: ( -25/189; -82/189)