Expressions and Equations

Vocabulary #1

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

The type of math where numbers and symbols are used to formulate expressions and equations?

Algebra

Vocabulary #2

100

7a + 8

8 is a _____

Constant

200

5x + 8

5 is a _______

Coefficient

300

A number, variable, or a number times a variable. 

Term

400

Is this an expression or equation?

2x - 5 = 17

Equation 

500

How many terms does this expression have? 

5x + 3 - 2x + 2

4 terms 

Simplify Expressions

100

Simplify:

3(x+2)

3x + 6

200

Simplify

4(m + 9)

4m + 36

300

Simplify:

9x - 3x  + 2x

8x

400

Simplify:

10x + 7 - 5x

5x + 7

500

Simplify:

9 + 12x - 2 - 7x

5x + 7 

Mixed Review

100

Simplify 4b - 2b +10 - 6

2b + 4

200

2 + 10 + 2(15)

42

300

Simplify 10 + 2b + 8b - 6

10b + 4

400

Solve:

4x = 12

x = 3

500

Solve: 

54 = 9x

x = 6

Mixed Review

100

Solve: 

3 + a = 1+ 6

a = 4

200

Solve: 

x + 3 = 2 + 6

x = 5

300

Does x = 4x have one solution, no solutions, or infinite number of solutions?

No solutions

400

Does x +9 = 9 +x have one solution, no solutions, or infinite number of solutions?

Infinite number of solutions

500

How would you graph x≥7.5? 

Open circle, closed circle, to the left or right. 

Closed circle and to the right