Expressions and Equations

Vocabulary

100

This type of math problem has no equal sign.

Expression

200

This type of math problem has an equal sign.

Equation

300

Another word for the lonely number in a math problem not attached to a variable. 

Constant

400

Another word for the letters used in expressions and equations.

Variable

500

The number in front of a variable

Coefficient

Exp or Equation?

100

Am I an Expression or Equation?

x + 31y = 5

Equation

200

Am I an Expression or Equation?

16 - x

Expression

300

Am I an Expression or Equation?

149 = 100 + 7x

Equation

400

Am I an Expression or Equation?

5(3-x) = 27

Equation

500

Am I an Expression or Equation?

14x + 2(x - 5) - 10

Expression

Equations

100

x/10 = 3

30

200

8x = 64

8

300

x + 5 = 9

4

400

x - 8.7 = 10.2

18.9

500

20.17 = x + 4.39

15.78

Expressions

100

x = 5

3(x+2)

21

200

x = 10

4(2x + 5)

100

300

x = 0

28x + 21

21

400

x= -6

2(4x² - 10)

268

500

x= -5

8x - 40

-80

2 Step Equations

100

2x + 1 = 13

6

200

5x + 4 = 49

9

300

80 = 17x + 29

3

400

54 = 13x - (-2)

4

500

x/-2 + (-3) = 15

-36