cho 23/5 +7/10
cho 23/5 +7/10
By Gabriella
By Gabriella
By Gabriella
cho 23/5 +7/10
`23/5 +7/10<x<20/3`
`⇒ 53/10<x<20/3`
`⇒ 159/30<x<200/30`
`⇒ x={160/30; 161/30; 162/30; …; 199/30}`
`23/5 + 7/10 < x < 20/3`
`=> 53/10 < x < 20/3`
`=> 159/30 < x < 200/30`
`=> x = 160/30 ; 161/30 ; … ; 199/30`