If a=1 and b=-3, what is the value of |a-2| + |2-b|?

It would be 6. If you substitute 1 and - 3 into their assigned letters, you would get 6 as your final answer. the two lines mean it is an absolute value, which means any negative number would turn into a positive number

|a-2| = 1

|2-b| = 5

Step-by-step explanation:

2 minus negative 3 would equal 5 because positive minus negative equals positive and you are using absolute value. 1 minus 2 would equal - 1 but the absolute value is 1 so the answer is 1.