Question

Use the bar diagram to solve the following equation:
4d +5 = 13
13
dddd
5

Answer 1

The value of d in the bar diagram is 2

Using the expression given;

• 4d + 5 = 13

Subtract 5 from both sides

4d + 5 - 5 = 13 - 5

4d = 8

divide both sides by 4 to isolate d

4d/4 = 8/4

d = 2

The value of d in the bar diagram is 2