1. Verbal Expressions for =
WRITING EQUATIONS
Verbal expressions that suggest the equals sign ( = ).
IS THE SAME AS IS
IS AS MUCH AS
EQUALS
IS EQUAL TO
IS IDENTICAL TO
Verbal Expressions for =

2. WRITING EQUATIONS
Verbal expressions that suggest the equals sign ( = ).
A number is equal to five. x
Writing equations #1

3. WRITING EQUATIONS
Verbal expressions that suggest the equals sign ( = ).
A number is equal to five. x =
Writing equations #2

4. WRITING EQUATIONS
Verbal expressions that suggest the equals sign ( = ).
A number is equal to five. x = 5
Writing equations #3

5. Verbal expressions that suggest the addition sign ( + ).
WRITING EQUATIONS
Verbal expressions that suggest the addition sign ( + ).
MORE THAN
PLUS
GREATER THAN
ADDED TO
THE SUM OF
Writing equations #4

6. WRITING EQUATIONS
Verbal expressions that suggest the addition sign ( + ).
Six added to a number is thirteen. 6
Writing equations #5

7. WRITING EQUATIONS
Verbal expressions that suggest the addition sign ( + ).
Six added to a number is thirteen. 6 +
Writing equations #6

8. WRITING EQUATIONS
Verbal expressions that suggest the addition sign ( + ).
Six added to a number is thirteen. 6 + x
Writing equations #7

9. 6 + x = Writing equations #8
Verbal expressions that suggest the addition sign ( + ).
Six added to a number is thirteen. 6 + x =
Writing equations #8

10. 6 + x = 13 Writing equations #9
Verbal expressions that suggest the addition sign ( + ).
Six added to a number is thirteen. 6 + x = 13
Writing equations #9

11. Writing equations #10 Verbal expressions SUBTRACTION WRITING EQUATIONS
MINUS
LESS THAN
SUBTRACTED FROM
LESS
DIFFERENCE
Writing equations #10

12. Writing equations #11 Verbal expressions MULTIPLICATION
THE PRODUCT OF
TWICE (times 2)
TIMES OF
MULTIPLIED BY
Writing equations #11

13. Writing equations #12 Verbal expressions DIVISION WRITING EQUATIONS
THE QUOTIENT OF
DIVIDED BY
DIVIDED INTO
Writing equations #12

14. Six more than a number is twenty.
WRITING EQUATIONS
PRACTICE
Six more than a number is twenty. 6
Writing equations #13

15. Six more than a number is twenty.
WRITING EQUATIONS
PRACTICE
Six more than a number is twenty. + 6
Writing equations #14

16. Six more than a number is twenty.
WRITING EQUATIONS
PRACTICE
Six more than a number is twenty. x + 6
Writing equations #15

17. Six more than a number is twenty.
WRITING EQUATIONS
PRACTICE
Six more than a number is twenty. x + 6 =
Writing equations #16

18. Six more than a number is twenty.
WRITING EQUATIONS
PRACTICE
Six more than a number is twenty. x + 6 = 20
Writing equations #17

19. Two less than a number is fourteen.
WRITING EQUATIONS
PRACTICE
Two less than a number is fourteen. 2
Writing equations #18

20. Two less than a number is fourteen.
WRITING EQUATIONS
PRACTICE
Two less than a number is fourteen. - 2
Writing equations #19

21. Two less than a number is fourteen.
WRITING EQUATIONS
PRACTICE
Two less than a number is fourteen. x - 2
Writing equations #20

22. Two less than a number is fourteen.
WRITING EQUATIONS
PRACTICE
Two less than a number is fourteen. x - 2 =
Writing equations #21

23. Two less than a number is fourteen.
WRITING EQUATIONS
PRACTICE
Two less than a number is fourteen. x - 2 = 14
Writing equations #22

24. Four less than twice a number is five
WRITING EQUATIONS
PRACTICE
Four less than twice a number is five 2x - 4 = 5
Writing equations #23

25. The sum of twice x and three times y is sixty.
WRITING EQUATIONS
PRACTICE
The sum of twice x and three times y is sixty. 2x + 3y = 60
Writing equations #24

26. The square of a number minus 3 is the same as two.
WRITING EQUATIONS
PRACTICE
The square of a number minus 3 is the same as two. x2 - 3 = 2
Writing equations #25

27. 5x + 2 = 1 Writing equations #26 LET’S WORK THE OTHER WAY.
Translate into a verbal sentence.
5x + 2 = 1
Two more than the product of five and a number is one or
The sum of five times a number and two is the same as one or
Two added to the product of five and a number equals one
Writing equations #26

28. 5 Steps to Problem Solving w/equations
FIVE STEPS TO PROBLEM SOLVING
1. Define a variable
2. Write an equation
3. Solve the equation
4. Answer the problem
5. Check your answer
5 Steps to Problem Solving w/equations

29. FIVE STEPS TO PROBLEM SOLVING Five more than a number is eleven.
SAMPLE PROBLEM
Five more than a number is eleven.
Define a variable
x = the number
Write an equation
x + 5 = 11
Solve the equation
x = 6
Answer the problem
The number is 6
Check your answer
5 more than 6 is 11.
Sample Problem

30. Addition Property of Equality
SOLVING EQUATIONS
Using Addition and Subtraction
ADDITION PROPERTY OF EQUALITY
For any numbers a, b, and c,
if a = b, then a + c = b + c
20 = 20 =
25 = 25
Addition Property of Equality

31. Solving Equations (Sample 1)
Using Addition and Subtraction
SAMPLE PROBLEMS
Solve: x – 3 = 7
x = 10
Equivalent Equation 
Check: 10 – 3 = 7 True
Solving Equations (Sample 1)

32. Solving Equations (Sample 2)
Using Addition and Subtraction
SAMPLE PROBLEMS
Solve: x + 6 = 2
x = - 4
Check: = 2 True
Solving Equations (Sample 2)

33. Solving Equations (Sample 3)
Using Addition and Subtraction
Solving Equations (Sample 3)
SAMPLE PROBLEMS
Solve: x = - 5
x = - 16
Check: (-16) = True

34. Solving Equations (Sample 4)
Using Addition and Subtraction
SAMPLE PROBLEMS
Solve: 55 – x = 70
-x = 15
NOTE: sign stays with x 
Change signs
x = -15
Check: 55 – (-15) = 70 True
Solving Equations (Sample 4)

35. Solving Equations (Sample 5)
Using Addition and Subtraction
SAMPLE PROBLEMS
Solve:
+1/ /3
Check: 11/15 – 1/3 = 11/15 – 5/15 = 6/15 = 2/5 True
Solving Equations (Sample 5)