Identifying Like Terms

What are the like terms in the following expression?

5a + 2b + 3a

• 5a, -3a

• 5a, 3a

• 5a, 2b

• 5a, 4

What are the like terms in the following expression? 
2x + 1 + 7x 

• 2x, 7x
• 2x, 1
• 2x, -7x
• 7x, 1

True or False:
4x and x are like terms.

• True 
• False

What are the like terms in the following expression?

5x + 8 + 2x

• 5x, -2x

• 5x, 2x

• 5x, 8

• 8, -2x

True or False:
4 and 14 are like terms.

• True 
• False

True or False:
y and 14 are like terms.

• True 
• False

Identify the like terms: -9n + 90 - 11n + c

• 90 and c

• -9n and -11n only

• -9n and c

• none

Identify the like terms x + 20 - 5x - 7a +80

• x and -5x: -7a

• x and -5x; 20 and 80

• -7a

• none

Identify the like terms: 4k + 6t - 45k -2a + 23

• there are no like terms

• -2a and 6t

• 4k and -45k only

• 4k and -45k: 6t and 23