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 numbers used in expressions and equations

Constant

400

Another word for the letters used in expressions and equations.

Variable

500

What type of variable depends on another variable?

Dependent Variable

Simplify Expressions

100

Simplify:

3(x+2)

3x + 6

200

Simplify

-4 (m + 9)

-4m - 36

300

Simplify:

3x - 9x

-6x

400

Simplify:

10x + 7 - 4x + 15

6x + 22

500

Simplify:

9 + 7x - 11 - 12x

-5x - 2

Solving Equations

100

Solve for x:

2x = 50

x=25

200

Solve for x:

x/3 = 11

x=33

300

Solve for x:

x - 5 = 11

x=16

400

Solve for x:

30 = 17 + x

x=13

500

Solve for x:
4 = 4x 

x=1

Distributive Property

100

Simplify:

5(x + 1)

5x + 5

200

Simplify:

2(-3x - 9)

-6x - 18

300

Simplify:

-3(4 + 5x)

-12 - 15x

400

Simplify:

5(x - 2)

5x - 10

500

Simplify:

7(2x + 5) 

14x + 35

Independent & Dependent Variables

100

Name the independent variable

y = 7x + 3

x is independent

200

Name the dependent variable

7g - 2 = k

k is the dependent variable

300

Name the independent variable

k = 230p + 5 

p is the independent variable

400

Name the dependent variable: 

9x - 23 = f

f is the dependent variable

500

Which variable is independent and which is dependent?

75 + 43d = e

e is dependent on d the independent variable