Simplifying Expressions

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

• -9
• 5
• x
• 5x

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

3w

• coefficient

• variable

• constant term

Which answer choice contains ALL like terms?

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

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4
• 2a + 2b + 4
• 8ab
• 4ab + 4

Simplify the expression: 7+3(1 - 2x) 

• 21 - 6x
• 10 - 2x
• 10 - 20x
• 10 - 6x

An unknown value usually represented by a letter

• coefficient

• variable

• term

• constant

• algebraic expression

The result of dividing one quantity by another

• product
• quotient
• sum
• difference

A number with no variable attached is called a  _____.

• coefficient
• constant
• variable
• term

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

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

-8(2z - 5)

• -16z + 40

• -16z - 40

• -16z + 3

• -10z -13