Question

a) 4(x + 1) + x + 4| < 2(2x + 3), x ≤ Z; ​

Answer 1

4(x + 1) + x + 4| < 2(2x + 3), x ≤ Z

4x+4+|x+4|<4x+6

|x+4|<4x+6-4x-4

|x+4|<2

-2<x+4<2            |-4

-6<x<-2

x E {-5,-4,-3}