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

The letters in an expression or equation.

Variable

400

Another word for a number (with any letters beside it) in expressions and equations.

Coefficient 

500

Another word for a number (without any letters beside it) in expressions and equations.

Constant

One-Step Equations

100

4+b=7

b=3

200

x-4=9

x=13

300

-10+x=4

x=14

400

4x=20

x=5

500

x/2=5

x=10

Two-Step Equations

100

6x-2x=24

x=6

200

2x+5=21

x=8

300

3b-4=11

b=5

400

2(3x+1)=14

x=2

500

2(x+2x)=36

x=6

Simplify the Expression

100

p+7p+5p

13p

200

6m+m+2+3m

10m+2

300

-6q+7-2+4q

-2q+5

400

7x+-(4x+2)

3x-2

500

Simplify the following expressions.

(3x+4)+(2x-1)

5x+3

Mixed

100

Is this an expression or equation?

2y+6x+12+4y-18y

Expression

200

What makes an equation different than an expression?

It has an equal sign.

300

The property has you multiply the inside of parentheses by the number right outside the parentheses.

The Distributive Property

400

When you put similar terms together.

Combing Like Terms

500

List the Three steps to solve an equation in the correct order.

1. Found which side the variable is on

2. Get rid of the constant

3. Get rid of the coefficient