evaluate |a+b|-c if a=2, b=-3 and c=-4
⚠ |a+b| is read as the absolute value abs(a+b)
We add the definition: a = 2
We have : b = -3
We add the definition: c = -4
Using stored definitions, replace abs(a + b) -c with abs(2 -3) + 4
Let's calculate: abs(2 -3) + 4
2 -3 = -1
abs(-1) + 4
abs(-1) = 1
1 + 4
Answer:   5