To complete the process of solving the equation, understand what changes from one line to the next.

Start at the top with the first and second lines.

To find the missing term, subtract 7 from both sides of the equation.

13c + 7= 20

13c + 7 – 7 = 20 – 7

13c = 13

The missing term is 13.

Look at the second and third lines.

To find the missing term, divide both sides of the equation by 13.

13c = 13

13c/13 = 13/13

c=1

The missing term is 1.

To complete the process of solving the equation, understand what changes from one line to the next.

Start at the top with the first and second lines.

To find the missing term, subtract 11 from both sides of the equation.

4p +11=19

4p + 11 – 11 = 19 – 11

4p = 8

The missing term is 8.

Look at the second and third lines.

To find the missing term, divide both sides of the equation by 4.

4p = 8

4p/4 = 8/4

p = 2

The missing term is 2.

To complete the process of solving the equation, understand what changes from one line to the next.

Start at the top with the first and second lines.

To find the missing term, subtract 11 from both sides of the equation.

3p +11=11

3p+11 – 11 =11 – 11

3p = 0

The missing term is 0.

Look at the second and third lines.

To find the missing term, divide both sides of the equation by 3.

3p = 0

3p/3 = 0/3

p= 0

The missing term is 0.