Equations/Expressions Review

Distribution

100

Distribute: 3(x +7)

3x + 21

200

Distribute: 12(x + 10)

12x + 120

300

Distribute: 7(6x + 11)

42x + 77

400

Distribute: 4(5x - 9)

20x - 36

500

Distribute: x(4x + 5)

4x²+5x

Solving Expressions

100

If x = 2, solve 3x + 1

7

200

If x = 11, solve 5x + 4

59

300

If x = 9, solve x²

81

400

If x = 22, solve 5x - 2x

66

500

If x = 3, solve x³+x²+1

37

Solving One Step Equations

100

Solve for x: 

14 + x = 34

x = 20

200

Solve for x: 

4x = 44

x = 11

300

Solve for x:

x / 6 = 20

x = 20

400

Solve for x: 

(1/3) x = 12

x = 12

500

Solve for x: 

(2/5) x = 4

x = 10

Solving Two Step Equations

100

Solve for x: 

4x + 2 = 10

x = 2

200

Solve for x: 

5x + 45 = 105

x = 12

300

Solve for x: 

7 + 3x = 79

x = 24

400

Solve for x: 

3 + (x/2) = 19

x = 32

500

Solve for x:

(4/5)x + 2 = 42

x = 50

Writing Equations

100

Write an equation that models the situation: Cam throw 12 pitches per inning in a game in which he throws 72 total pitches, how many innings does he throw? 

12x = 72 

or 

72 = 12x

200

Write an equation to model the situation: Mike is taking inventory of baseballs for the MS.  Last year the 7th grade had 52 baseballs and this year he only has 37.  How many baseballs did the 7th grade lose? 

52 - x = 37

300

Brock starts his day with 60 jolly ranchers, if he gives out jolly ranchers to 30 students, how many students did he give jolly ranchers to? 

30x = 60       or         60/x = 30

60 = 30x       or          30  =  60/x

400

Verizon charges a one time $25 setup fee for service and then will charge $50 per month, if a customer is billed for $375, how many months of service did they have? 

50x + 25 = 375

500

When looking through credit card purchases, there is a $20 registration fee (one-time) with a reoccurring $3 a week fee.  How many weeks of use for the credit card if a person is charged $38?

20 + 3x = 38

3x + 20 = 38