Answer:
-8
Step-by-step explanation:
Let n represent the number. Then we have ...
n -3 . . . . the difference of a number and 3
= . . . . . . equals
5 +2n . . . 5 added to twice the number
Adding -n-5 to both sides of the equation gives ...
n -3 -n -5 = 5 +2n -n -5
-8 = n . . . . . simplify
The number is -8.
