Combing Like Terms and Simplifying Expressions

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

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

• 23

• 23v

• 9 + 14v

• 9v + 14

Simplify the following expression:
(5 + 4x) + (2x - 8)

• 13 + 6x

• 6x - 3

• 6x - 13

• 6x + 3

Simplify:
4(8x + 1) - 6(1 - 8x)

• -80x - 2

• 80x + 2

• -80x + 2

• 80x - 2

Terms that have the same variables such as 5x and -8x.

• like terms

• coefficients

• exponents

• variables

Match the following like terms.

• 4x

• 4b

• 10y

• -a

• 3

• 3x

• -8b

• -7

• 12a

• -8y

– 9r³ + 2r – 5r³ + 3 – 20r

• -4r³ - 18r + 3

•  -14r³ - 18r + 3

•  -14r³ + 18r + 3

What is a name for the 3 in this expression?

• term 

• variable 

• coefficient

• constant