Question

How do you solve `-101\leq 10x - 1\leq 69`?

Answer 1

`-10.2<=x<=7`

Explanation:

Add `1` to both sides:
`-101+1<=10x-1+1<=69+1`
`-102<=10x<=70`

Now divide by `10`:
`-102/10<=(10x)/10<=70/10`
`-10.2<=x<=7`