1. Chapter 1
Review

2. Objectives By the end of the class, you will be able to…
Write algebraic equations from word phrases
Solve one-step equations with one variable

3. Let’s Review: Equations vs. Expressions
Do not have an equals (=) sign
Ex:
3x + 5
4y + 8 – 2x
Have an equals (=) sign
Ex.
3x + 5 = 11
4y + 8 – 2x = 72

4. Let’s Review: Algebraic Word Phrases
is means =
Equals means =
Ex: nine times a number x minus 95 equals 37
9x – 95 = 37

5. Let’s Review: Algebraic Word Phrases
is means =
Equals means =
Ex: five times the number x squared plus 26 is 35
5x = 35

6. Let’s Review: Algebraic Word Phrases
Some word phrases have two parts
Ex: three times the sum of b and c is 27
3(a + b) = 27

7. Let’s Review: Algebraic Word Phrases
Some word phrases have two parts
Ex: 4 times the difference of x and 14 is 32
4(x - 14) = 32

8. Let’s Review: Algebraic Word Phrases
Some equations don’t have a specific answer
Ex: five times the number x squared is three times the sum of b and c.
5x2 = 3(b+ c)

9. Let’s Review: Algebraic Word Phrases
Some equations don’t have a specific answer
Ex: 16 plus 3 times a number x is the difference of b and c.
16 + 3x = b - c

10. Your Turn, What’s the Equation?
Some equations don’t have a specific answer
Ex: 3 times a number x squared is 5 times the difference of b and c.

11. Your Turn, What’s the Equation?
Some equations don’t have a specific answer
Ex: 3 times a number x squared is 5 times the difference of b and c.
3x2 = 5(b – c)

12. What is the equation?
The first ice cream plant was established in 1851 by Jacob Fussell. Today, 2,000,000 gallons of ice cream are produced in the US each day. In how many days can 40,000,000 gallons of ice cream be produced in the US?

13. What is the equation?
The first ice cream plant was established in 1851 by Jacob Fussell. Today, 2,000,000 gallons of ice cream are produced in the US each day. In how many days can 40,000,000 gallons of ice cream be produced in the US?
40,000,000 = 2,000,000x