Автор - ayganymkazbeko

17(х+13)-19(х-21)+249=25(5х-53)-3(7х576)

Ответ

Автор - sirtoporov
17(х+13)-19(х-21)+249=25(5х-53)-3(7х×576)
17х+221-19х+399+249=125х-1325-21х-1728
-2х+869=104х-3053
-106х=-3922
х=37

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