Equivalent Expressions

Simplify the expression: 2x + 1 + 7x 

• 10x
• 10
• 9x + 1
• 9 + 1x

Simplify the expression: 3x + 2x

• 5x
• x
• 6x
• 5

What does 3² mean?

• 3 x 2
• 3 x 3
• 2 x 2 x 2

Which expression is equivalent to  $8c\ +\ 6\ -\ 3c\ -\ 2?$  

•  $5c+4$  

•  $5c+8$  

•  $11c+4$  

•  $11c+8$  

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

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

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

• 3
• -17
• 5
• 1

What are like terms?

• Terms with different variables

• Terms with the same variables

• Terms with no variables

How many terms does the following expression have: 3x-9+4+2x

• 1

• 2

• 3

• 4

Combine the like terms in the expression: 5y+2+3y+6

• There are no like terms

• 8y+2+6

• 53y+12

• 8y+8

Combine the like terms in the expression: 12c+2+7c

• There are no like terms

• 19c+2

• 5c+2

• 19c