Simplifying Expressions and Combining Like Terms

Simplify the expression: 2x + 1 + 7x 

• 10x
• 10
• 9x + 1
• 9 + 1x

n +10 +9n -3=

• -3
• 9n-3
• n
• 10n + 7

Combine like terms
3x + 2x + 11y - 7y

• 5x + 10y
• 5x - 4y
• 5x + 4y
• 5x -10y

Simplify and combine like terms:  -6k +7k

• K
• -K

• 13K
• -13K

12X-8-12

• 30X
• 32X
• 12X-20
• 12X-6

y + y =

• y²
  
• 2y

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

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

Add or Subtract to Simplify:
 (5x + 2) + (4x + 5)

• 9x -7
• -9x-11
• 9x+7
• x+7

How many terms does this expression have?
3x + 5y - 17 - 2y + x

• 3
• -17
• 5
• 1

Which expression is equivalent to:
d + d + d + 3 + 2

• 3d + 5
• d + 5
• 2d + 7
• 3d + 4