1-8 Simplifying Algebraic Expressions

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

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

• -9
• 5
• x
• 5x

What is the constant in the following expression?
7x +12

• 19
• 7x
• 12
• -12

Simplify the expression: 

8a + 3a

• 11a
• 5a
• 11
• a

Simplify the expression: 

x + 2x

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

Simplify the expression: 
3a + 2 + a

• 4a + 2
• 5a
• 6a
• 2a + 2

Simplify the expression: 
5a³−6a²

• −a³
• a²
• 11a³
• 5a³−6a²

Simplify the expression: 
12x³ - 4x³ + 2x²

• 12x³ - 6x²
• 12x³ - 4x³ + 2x²
• 8x³ + 2x²
• 10x³

Simplify the expression:
-5(x + 4)

• 5x + 4
• -5x + 4
• -5x - 20
• -5x + 20

Simplify the expression: 
7(a + 8) - 5a + 4

• 2a + 60
• -5a + 60
• 2a + 56
• 7a + 4