Simplifying Expression by Combining Like Terms

Simplify the expression: 2x + 1 + 7x

• 10x

• 10

• 9x + 1

• 9 + 1x

Simplify the expression:

5a + 2b - 3a + 4

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4

7 + 9b + 3b

• 16b + 3b

• 12b + 7

• 27b + 7

• 6b + 7

2a + 9 + 4a

• 6a + 9

• 2a + 9

• 8a + 9

• 6a - 9

y + x + y + y + x

• 2 + 3

• x + y

• 2x + 3y

• 5xy

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

• 23

• 23v

• 9 + 14v

• 9v + 14

What are the like terms in the following expression?

4x² - 3x - 2x

• -3x, -2x

• 3x, 2x

• -3x, 2x

• All the terms in the expression are similar.

Which of these are like terms in the following expression:
3x - 9x + 2x²

• 7, 24y

• 3x, 9x

• 3x, -9x

• 3x, -9x, 2x²

These have the the same variable factor and can, therefore, be combined...

• Expressions

• Distributive Property

• Additive Inverse

• Like Terms