Simplifying Expressions

4a + 9 + a

• 5a + 9
• 14a
• 3a + 9
• 5a - 9

Identify the term(s) in this expression? 3x + 12 + x

• 3x

• 12

• x

• all of the above

Which answer choice contains ALL like terms?

• -4x, 2x, 3x
• -4x, 2, 3y
• 4x², 2x
• 14, 4x

In the expression below, the 3 is known as the _________________________

3y

• coefficient

• variable

• constant term

What is the coefficient in the following expression?
5x - 9

• -9
• 5
• x
• 5x

Simplify the Expression. 
9z  - 21 - 3z + 10

• Simplified
• 9z - 21 - 7
• 9z - 11 -3z
• 6z - 11

Simplify by combining like terms:
4x² - 3x + 11 -2x

• 4x² - 5x + 11
• 11x + 11
• 16x² - 5x + 11
• 10x²

• Can't be simplified

-4x - 10x

• -14
• 6x
• -6x
• -14x

Simplify the following expression:
n -10 +9n -3=

• -3
• 9n-3
• n
• 10n -13