Question

-1 ≤ 3z + 2 ≤ 8

Answer 1

These work like regular algebra equations except when you subtract 2 from the middle you subtract two from the left and the right also

Answer 2

So what do you think you should do first?

Answer 3

-1 ≤ z and z ≤ 2

Answer 4

Yes, but you could just write -1 ≤ z ≤ 2

Answer 5

Good :)