Equations review

One Step Equations

100

t - 3.7 = 1.2

4.9

200

n + 1/2 = 3/2

1

300

6 + x = 1

-5

400

-2 + j = -22

-20

500

-3x = -15

5

Two step equations

100

-2x + 6 = -8

7

200

-3x - 4.6 = 5.9

-3.5

300

2x - 4 = 6

5

400

5x - 2 = 13

3

500

10x + 20 = 100

8

Word problems 1

100

A triangle has two known sides:

Side 1 = 3 cm

Side 2 = 2 cm

The perimeter is 10 cm.  

Write and solve an equation to find the missing side.

5 cm

200

Write "3 times a number y is -42" as an equation.

3y = -42

300

You play a game and lose 3 points for each wrong question.  You have a final score of -15.  Write an equation to show how many missed questions you have.

-3x = -15

400

You are 5 years older than your cousin.  How old is your cousin when you are 12 years old?

x + 5 = 12

Your cousin is 7.

500

Write the 8 less than a number is 12 as an equation.

x - 8 =12

Word problems 2

100

Write the equation:

A phone company charges you $10 per month plus $1.00 for each long distance call.  How many calls did you make if your final bill is $100.

10 + 1.00x = 100

200

Dragane earns $25 for each pair of shoes he sells.  How many pairs did he sell if he earned $300 this month?

25x = 300

12 pairs

300

Write an equation:

Joey earned 500 points for playing a game.  He also lost 5 points per error.  How many errors did he make if his final score was 350

500 - 5x = 350

400

Write as an equation:

9 more than a number is 25

9 + x = 25

500

Hailey saved $100 already.  She then babysat for her neighbors and earned $8 per hour.  How many hours did she babysit if she now has $164.

100 + 8x = 164