Expression Like Terms

Which one is the variable?
3w + 2w - (-7w)

• 3
• 2
• w
• 12

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

• -9
• 5
• x
• 5x

Identify the "like terms" in the expression: 
2x + 4y - 3x + y - x

• 2x and 4y and -3x
• 2x and -3x and x
  4y and y 
• they are all like terms
• there are no like terms

How many terms are in the expression: 
4a - 2b + 8 - 3a - 4b

• 5
• 3
• 9

Simplify the expression: 3x + 2x

• 5x
• x
• 6x
• 5

x + 2x

• 2x²
• 3x
• Can't be simplified
• 3x + x

Which one is the constant?
5g³ + 2

• 5
• g
• 3
• 2

Simplify the expression.
3p - 2p + 6p 

• 3p
• 7p
• 5p
• 8p

Simplify the expression.  Then state the coefficient of the variable in each expression.
w + w + w + w + w + w + w + 15 - 7

• 6w - 8, 6
• 7w - 8, -8
• 7w + 8, 7
• 6w + 8

Simplify the expression: 2x + 1 + 7x 

• 10x
• 10
• 9x + 1
• 9 + 1x