Question

помогите 2<b<6, при 4-b. решить

Answer 1

$2<b<6; |cdot (-1)\\-6<-b<-2; |+4\\4-6<4-b<4-2\\-2<4-b<2$

Answer 2

$2<b<6; |cdot (-1)\\-6<-b<-2; |+4\\4-6<4-b<4-2\\-2<4-b<2$

Answer 3

$2<b<6; |cdot (-1)\\-6<-b<-2; |+4\\4-6<4-b<4-2\\-2<4-b<2$

Answer 4

$2<b<6; |cdot (-1)\\-6<-b<-2; |+4\\4-6<4-b<4-2\\-2<4-b<2$