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

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