A number d is less than or equle to 2 and greater than or equle to -2

Question

A number d is less than or equle to 2 and greater than or equle to -2

Answer 1

Are you changing words into equations? if so..

 

-2≤d≤2

Answer 2

"A number d is less than or equal to 2 and greater than or equal to -2"

                  d                ≤             2    and       d    ≥          -2

 

Now, d≥-2 can be written as   -2≤d

That allows us to combine the two inequalities:

             -2 ≤ d ≤ 2