Equations

1 step equations

100

5x+3= 28

x=5

200

2/3x+ 7= 21

x=21

300

0.6+x= 14

x=13.4

400

-6+ x=16.6

x=22.6

500

3/4x-7=10

x= 22 2/3

Write and solve an equation

100

Jimmy bought 20 donuts for the total price of $22.  He wants to know how much the cost is per donut.  

20x = $22

x= $ 1.10  per donut

200

John's class made a total of $100  selling raffle tickets. They sold 40 tickets , but how much was the price of each ticket?  

40x= $100

x=$2.50 each ticket

300

The valentine dance tickets were $4 per student.  The total sold was $156.  How many students attended the dance?

4x=$156

x= 39 students attended the dance

400

Write an equation and solve

Daily Double 

500

What has a trunk but is not an elephant?

A tree

Vocabulary

100

variable

x or other symbols in expression

200

write an equation

x+3= 15

equation must have a term, variable, and an equal sign

300

like terms 

5x , 3x 

4, 3 

400

isolate the variable

x=3 

the variable stands alone

500

distributive property

5(x+3)= 45

5x+15=45

5x=30

x=6

Two step equations

100

5(x-4)= 40

5(x-4)=40

5x-20=40

5x=60

x=12

200

3(4-x)=50

3(4-x)=50

12-3x=50

-3x= 38

x= -12.67

300

Why animal can be as big as an elephant?

The blue whale

400

4(x-3)= 28

4(x-3)=28

4x-12=28

4x=40

x=10

500

What game did the elephant play with the ant?

squash