Combining Like Terms

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 following expression
7 - 8c + 3 - 6c 

• -10+14c
• -25
• 10-14c
• 25c

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

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

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

-3x + 11y - 4x

• 7x + 11y

• -7x + 11y

• 7x - 11y

• 4xy

-9n + 12n + 7

• 28n

• 10n

• 21n + 7

• 3n + 7

3b + b - 2b 

• 3b
• b
• 2b