Simplifying Expressions
Simplifying Expressions CHallenge
One Step Equations
vocab
Writing Expressions
100
5(x - 12)
What is 5x - 60
100

2 (2x + 3) - 5

4x + 1

100

3 + x = 10

x = 7

100
define expression 

no equal sign 

100

You go to the store and buy large bags of skittles for $3 each. You spend a total of $33. Write an equation to find how many bags of skittles you bought.

1. Define the variable.

2. Write an equation

1. Define the variable: number of bags of skittles

2. Write an equation: 3x =33

200

9z + 10z + z + 3z

23z

200

6 + 2(-3x+7)

-6x + 20

200

x/7 = -4

x = -28
200

Define variable 

a letter to show an unknown number
200

You go camping. The campsite costs 25 dollars to reserve and another 10 dollars per night. Your total cost was 55 dollars. Write an equation to show how many nights you stayed?

1. Define the variable.

2. Write an equation

1. number of nights

2. 10x+25 = 55

300

-10+ 17w + 31

17w + 21

300

9 (3 + 10x) + 3x

27 + 33x

300

21 = -4 + x

x=25
300

define equations 

a number sentence with an equal sign 

300

You go to the store to buy packs of sunflower seeds. Each pack costs $2. You spend a total of $24. Write an equation to find how many packs of cardinal flower seeds you bought.  Do not solve.

1. Define the variable.

2. Write an equation

1. Define the variable: the number of seeds bought

2. 2x = 24

400

12(t - 4)

What is 12t - 48

400

5 (3 - 4x) - 8

7 -20x

400

3x = -30

x = -10

400

coefficient 

a number that is multiplied by a variable

400

A group of people went out to eat. Each person ordered a shirley temple for $5, and you got a $15 cheesecake for the table. The bill was $30, write an equation to find how many people went out to eat. 

1. Define the variable.

2. Write an equation

1. Define the variable: number of people

2. Write an equation: 5x +15 = 30

500

10(8y - 9z)

What is 80y - 90z

500

2 - 5x + 3(2x - 3)

-2x -7 

500

10x = 60

x = 6

500

constant 

a number 

500

You were participating in a hockey tournament. You bought a pack of hockey pucks for $4 each, and a hockey stick for $60, your bill was $74. Write an equation to determine how many hockey pucks you bought?

1. Define the variable.

2. Write an equation

1. Define the variable: number of hockey pucks

2. Write an equation: 4x + 60 = 74

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