Объяснение:
х+у=8 |*-1
х+2у=24
-х-у=-8
у= 16
х+16=8
х=-8
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Объяснение:
х+у=8 |*-1
х+2у=24
-х-у=-8
х+2у=24
у= 16
х+16=8
х=-8