EMS Algebra Review

Vocabulary

100

A math sentence made up of numbers, symbols, and operations.  Does NOT have an equals sign

Expression

200

A number that is being multiplied by a variable

Coefficient 

300

A math sentences in which one side is equal to another.  MUST contain an equals sign

Equation

400

The answer to a division problem

Quotient 

500

Opposite operations that are used to cancel terms

(EX: addition and subtraction)

Inverse Operations

Combining Like Terms

100

3w + 5w + 7

8w + 7

200

-2x + 5 - 7x

-9x + 5

300

x + 1 - 7 

x - 6

400

5x + 4 + x - 8

6x - 4

500

5z - 7 - 8z + 4

-3z - 3

Distributive Property

100

2(4w + 3)

8w + 6

200

5(x + 7)

5x + 35

300

-3(2n + 4)

-6n - 12

400

-6(2z - 3)

-12z + 18

500

-(3x - 5)

-3x + 5

Quotient

100

16z / 4

4z

200

-27x / 9

-3x

300

-54w / 12

-9w / 2

400

84y / 8

21y / 2

500

15x/3    +  2x 

7x

Solving Equations

100

w + 7 = 10

w = 3

200

x - 5 = 30

x = 35

300

3n = 93

n = 31

400

4z + 2 = 22

z = 5

500

-7x + 3 = -11

x = 2