1. Solving Addition Equations
Textbook page 62
IAN page 83

2. Solving Addition Equations
Each side of the equation must be balanced. We balance an equation by doing the same thing to both sides of the equal sign.

3. Solving Addition Equations
Example 1
Solving Addition Equations
Solve each equation. Check your answers.
(A) x + 62 = 93
Do the opposite
- 62
- 62
Do the same thing to both sides of the equation.
x = 31
= 93
To check your work, substitute in the value of x.

4. Solving Addition Equations
Example 1
Solving Addition Equations
Solve each equation. Check your answers.
(B) 8.1 = y
Do the opposite
Do the same thing to both sides of the equation.
- 1.7
- 1.7
6.4 = y
8.1 =
To check your work, substitute in the value of y.

5. Solving Addition Equations
Example 2
Word Problem: Social Studies
Dyersburg, Newton, and St. Thomas are located along Ventura Highway, as shown on the map. Find the distance d between Newton and Dyersburg.
25 = 6 + d -6 -6
19 = d

6. Solving Addition Equations Practice Problems
1. x + 54 = = 12 + y 3. n = 4.6
x = 36
y = 37
n = 1.9
t = = p c + 38 = 54
t = 6.9
p = 18
c = 16

7. Solving Addition Equations Practice Problems
Lou, Michael, and Georgette live on Mulberry Street, as shown on the map. Lou lives 10 blocks from Georgette. Georgette lives 4 blocks from Michael. How many blocks does Michael live from Lou?
10 = 4 + b
6 blocks