Question

Solve : $15-2(2x-1)<15,xϵZ$

Answer 1

$15-2(2x-1)<15,xϵZ$

$\Rightarrow 15-2(2x-1)<15,xϵZ\Rightarrow 15-4x+2<15\Rightarrow 17-4x<15\Rightarrow -4x<15-17\Rightarrow -4x<-2\Rightarrow \frac{-4}{-4}x>\frac{-2}{-4}=\frac{1}{2}(Dividingby-4)\therefore x=1,2,3,4,5,....$

$\therefore$ Solution set = {1,2,3,4,5,,.....}