# Thread: Inequality Ti-Nspire CX CAS

1. ## Inequality Ti-Nspire CX CAS

Anyone know how to solve this on the Nspire CAS?
-9/5<-3t+1<-7/4. What is 9t-3

2. ## Re: Inequality Ti-Nspire CX CAS

you shouldn't need a calculator for this ... multiply every term by -3; don't forget to switch the direction of the inequality signs

the calculator can isolate t as shown in the attachment