Объяснение:
3х-2у=7 •(-2)
2х+5у= -8 •3
-6х+4у= -14
6х+15у= -24
+ —————
19у= -38
у= -2
3х-2×(-2)=7
3х+4=7
3х=7-4
3х=3
х=1
ответ: (1;-2)
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Объяснение:
3х-2у=7 •(-2)
2х+5у= -8 •3
-6х+4у= -14
6х+15у= -24
+ —————
19у= -38
у= -2
3х-2×(-2)=7
3х+4=7
3х=7-4
3х=3
х=1
ответ: (1;-2)