Combine Like Terms

Simplify the expression: 3x + 2x

• 5x
• x
• 6x
• 5

Simplify the expression: 2x + 1 + 7x 

• 10x
• 10
• 9x + 1
• 9 + 1x

Simplify the expression: 7v + 2 + 12 + 2v

• 23
• 23v
• 9 + 14v
• 9v + 14

Simplify the expression: 2x + 1 + 7x 

• 10x
• 10
• 9x + 1
• 9 + 1x

a + a + a + a

• a + 4 
• 4a 
• a to the fourth power 
• 4a + 4 

-6k + 7k=

• k
• -k
• 12k
• -12k

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

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

-3x + 11y - 4x

• 7x + 11y

• -7x + 11y

• 7x - 11y

• 4xy

Simplify:

3x + 2x

• 5x

• x

• 6x

• 5

-r - 10r

• 11r
• -11r
• 9r
• -11