Ответ:
(2 8/17; -11/17)
Объяснение:
2х+3у=3 (*3)
-3х+4у=-10 (*2)
6х+9у=9
-6х+8у=-20
17у = -11 у=-11/17
6х + 9 (-11/17) =9; 6х=252/17; х=252/102=2 8/17
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Ответ:
(2 8/17; -11/17)
Объяснение:
2х+3у=3 (*3)
-3х+4у=-10 (*2)
6х+9у=9
-6х+8у=-20
17у = -11 у=-11/17
6х + 9 (-11/17) =9; 6х=252/17; х=252/102=2 8/17