evaluate |a+b|-c if a=2, b=-3 and c=-4
Given a = 2, b = -3 and c = -4, we substitute |a + b| -c → |2 -3| + 4
Let's calculate: |2 -3| + 4
ⓘ Start from 2 and move back 3 on the number line, going below zero: 2 -3 = -1
|-1| + 4
ⓘ The expression inside the absolute value is nonpositive; therefore, its absolute value equals its opposite: |-1| = 1
1 + 4
ⓘ Start from 1 and move forward 4 on the number line: 1 + 4 = 5
▶Result:   5