7(x-19)=133 9(213-2x)=927 1344/(x+26)=32 384: (51-5x)=24 - вопрос №3355996719133921329271344263238451524 от Darina784 12.12.2021 18:03

Question

Математика: 7(x-19)=133 9(213-2x)=927 1344/(x+26)=32 384: (51-5x)=24

Darina784 · Answer

7(х-19)=133х-19=133:7х-19=19х=19+19х=389(213-2х)=927213-2х= 927:9213-2х=1032х= 213-1032х=110х=110:2х=551344:(х+26)=32х+26= 1344:32х+26=42х=42-26х=16384:(51-5х)=2451-5х=384:2451-5х=165х=51-165х=35х=35:5х=7...