Answer:
see below
Step-by-step explanation:
Draw a line with points on it from -10 to 10 going by 1
Put a dot at -5 for the -5 point
-(-5) is 5
Put a dot at 5
Start at -4 on the number line. Move 6 units to the left to get to -10
This shows -4 - 6 = -10