Recognize & Combine Like Terms

What is/are the coefficient(s) of
 2x + 9 + 7x?

• 2, 9, 7
• 2, 7
• 2x, 7x
• 9

How many terms are in the following expression?
8n + 2 - 7x

• 1
• 2
• 3
• 4

• 3

• 4.5

• -7x

Combine the Like Terms below

5x + 8 + 2x + 7

• 7x + 15

• 3x + 15

• 13x + 9

• 22

A coefficient is __________.

• the variable
• a constant
• an exponent
• the number that comes before the variable

Simplify: x + 3x + 6x + x

• 9x

• 11x

• 2x + 9x

• Can't be simplified

A variable can be _______?

• Any number

• Any letter of the alphabet

• only X

• only 1

x + x

• 2x

• 2 + x

• x - 2

Simplify the expression: 2x + 1 + 7x 

• 10x
• 10
• 9x + 1
• 9 + 1x

Rewrite the expression by combining like terms.
5x² + 5y + 2x² + 4y² – 4x² + 2y² - 4y

• 3x² + 3xy + 6y
• 6y² + 2xy + 2x
• 7x² + 35x
• 3x² + 6y² + y