17(x+13)-19(x-21)+249=25(5x-53)-3(7х+576). Created by AnelyaHappy. matematika-ru

17(x+13)-19(x-21)+249=25(5x-53)-3(7х+576)...

July 2022 1 11 Report

17(x+13)-19(x-21)+249=25(5x-53)-3(7х+576)

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teplova2006 17(х+13)-19(х-21)+249=25(5х-53)-3(7х+576)
17х+221-19х+399+249=
125х-1325-21х-1728
17х-19х-125х+21х=
1325-1728-221-399-249-106х=
3922х=3922:(-106)х=37

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