8m+m-7=256 x+ 2 1/4=2 3/4. 1,7x+3,804=8,02. 2,06-x-6,76=8,69 - вопрос №586457987256214234173804802206676869 от margaian2005 19.10.2022 09:37

Question

Математика: 8m+m-7=256 x+ 2 1/4=2 3/4. 1,7x+3,804=8,02. 2,06-x-6,76=8,69

margaian2005 · Answer

8m+m-7=256 9m-7=2569m=256+79m=263m=263:9m=29 2/9x+ 2 1/4=2 3/4. x=2 3/4-2 1/4x=2/4x=1/21,7x+3,804=8,02. 1,7x=8,02-3,8041,7x=4,216x=4,216:1,7x=2,482,06-x-6,76=8,69-4,7-x=8,69-x=8,69+4,7-x=13,39x=-13,39...