Expression A: 6 – (–3)Expression B: |6 – (–3)| How can you model Expression A on a number line? Explain how you could use the number line to arrive at the value of the expression. please help

In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data
A : 6 - (-3)
Step 02:
Applying algebraic rules
6 - (- 3) = 6 + 3
Step 03:
Number line
I can use the number line to locate the number 6, then add 3 units to it and thus find the result that is 9.
That is the solution. .