Expressions Review

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

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

2r + 2 + 5r - 2 + r 

• 8r 
• 8r - 4 
• 12r 
• 7r + 4 + r 

6x + 1 + 7x 

• 13x - 1
• 14x 
• 7x + 6x + 1 
• 13x + 1 

2(4 + 9w) 

• 8+9w
• 2+9
• 8+18w
• 2+9w

7(y+9)

• 7+9
• 7y+63
• -7y-63
  -7y+63
• 7x+63

-4x - 10x

• -14
• 6x
• -6x
• -14x

5x + 3y + 5 + 4x + 3y + y + 8

• 9x + 7y + 13
• 6x + 2y + 2
• 25x + 2y + 3
• x + 7y + 12

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

• -9
• 5
• x
• 5x

In the following expression, how many terms are there?

5x³ - 7x + 11

• 1

• 2

• 3

• 4

In the following expression, the number 11 is an example of a ____________?

5x³ - 7x + 11

• term

• constant

• coefficient

• variable