Ответ:
7у=2х+16
у=2/7х+16/7
11у=16-6х
у=16/11-6/11х
2/7х+16/7=16/11-6/11 х
2/7х+6/11х=16/11-16/7
64/77х=-64/77
х=-1
у=2
(-1:2)
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Ответ:
7у=2х+16
у=2/7х+16/7
11у=16-6х
у=16/11-6/11х
2/7х+16/7=16/11-6/11 х
2/7х+6/11х=16/11-16/7
64/77х=-64/77
х=-1
у=2
(-1:2)