Vocabulary
Like Terms
+- Constant
Multiplying Variables
Dividing with Variables
100

Define a variable +  give an example

A symbol for a value we do not know yet.

X

100

Which of the following are like terms?

a. 3x +4x3

b. 4xy - 7y

c. 5xyz + 37xyz

d. 8x3y + 8xy


c. 5xyz + 37xyz

100

Solve for the variable:

X - 6 = 30

X = 36

100

3x = 27

x = 9

100

x/5 = 5

x = 25

200

Define Coefficient + give example

A numerical quantity that is placed before the multiplying variable.

4y

200

Combine the like terms:

8t +7 +1

8t + 8

200

Solve for the variable:

D + 360 = 400

D = 40

200

7r = 56

r = 8

200

y/4 = 12

y = 48

300

Define Constant + Given Example

a fixed value, often after a subtracting or adding operation. 

2x + = 8

300

Combine the like terms:

3x + 4xy + 6xy + 3x

6x + 10xy

300

Solve for the variable:

P - 345 = 155

P = 500

300

24h = 168

h = 7

300

q/12 = 156

q = 13

400

Define and give an example of Solution

the value of a variable that makes an open sentence true. 

2x + 4 = 8, x = 2

400

Combine the like terms:

3x4y + 6xy + 7y - 2xy + 4 x4y

7x4y + 4xy + 7y

400

Solve for the variable:

457 + T = 603

T = 146

400

31c = 124

c = 4

400

a/15 = 105

a = 7

500

Define Monomial and give an example

A term that is a number, a variable, or the product of a variable and a number

3x2

500

Combine Like Terms:

3xy2 + 4xy - 2xy2 + 3x2y - x + 3x + 3xy

xy+7xy + 3x2y +2x

500

872 - J = 374

J = 498

500

45k = 495

k = 11

500

m/21 = 189

m = 9