7th Unit 7.1a Quiz Review

Simplify the expression: 2x + 1 + 7x 

• 10x
• 10
• 9x + 1
• 9 + 1x

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

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

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

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

What is the variable? 8x + 15

• 8X

• x

• 15

• +

• 2

• 3

• 4

• 1

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

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

• 5 and 3

• 8

• 2

• x and y

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

• 23
• 23v
• 9 + 14v
• 9v + 14

What are the coefficients in an expression?

• The numbers multiplied by the variables

• The operations in the expression

• The constants in the expression

• The exponents in the expression

Combine like terms to simplify: 5 + b + 2

• 7b

• 7b + 7

• 7 + b

• 8b