Problem 8 - Introductory Algebra for College Students

Question

Find each sum using a number line. $$5+(-5)$$

Step-by-Step Solution

Answer

The sum of 5 and -5 using a number line is 0.

Step 1: Identify the Positive Number

Identify the positive number in the problem, which is 5. This number represents a spot on the number line. Mark this number on the number line.

Step 2: Identify the Negative Number

Identify the negative number, which is -5. The negative sign in front of the number, -5, means that we have to move left on the number line by 5 places.

Step 3: Make the Move on the Number Line

Starting from 5, move 5 places to the left on the number line. This represents adding -5 to 5.

Step 4: Identify the Final Position

The final location on the number line gives the result of the addition. This is where -5 has taken us starting from 5 on the number line.