Ответ:
(х=4+2у
(2х-5у= 8
2(4+2у)-5у=8
8+4у-5у= 8
4у-5у=8-8
-у=0
у=0
х=4+2•0
х=4
ответ:(4;0)
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Ответ:
(х=4+2у
(2х-5у= 8
2(4+2у)-5у=8
8+4у-5у= 8
4у-5у=8-8
-у=0
у=0
х=4+2•0
х=4
ответ:(4;0)