Question

How do you solve `2\leq 6x - 1< 21`?

Answer 1

`1/2<=x<11/3`

Explanation:

We have to solve
`2<=6x-1`
so we get
`3<=6x`
`1/2<=x`
And we have to solve
`6x-1<21`
so
`6x<22`
`x<11/3`
so our solution is given by
`1/2<=x<11/3`