Combining Like Terms

What is combining like "terms"?

• when the terms are the same

• when the co-effecient is the same or different but the variables are the same.

• when the numbers are the same

• when there are no co-effecients

Tags

CCSS.7.EE.A.1

Combine the following terms:

12x + 13x - 7y - 7x

Answer explanation

Absolutely, you added and subtracted all the x terms and then combined to the final term of -7y.

Tags

CCSS.7.EE.A.1

Select all that apply:

A co-effecient is ...

• the number that exists with the variable.

• the number above all the others

• the number that explains how many of the variable you have

• is always multiplied to the variable.

Answer explanation

a numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g. 4 in 4x ^y).

Tags

CCSS.6.EE.A.2B

Write the co-effecient in the following term:

-9x

Tags

CCSS.6.EE.A.2B

Combine the following:

-9 + 3x - 8x

• -5x -9

• -11x -9

• -11x + 9

• -6x - 8x

Tags

CCSS.7.EE.A.1

Combine the following:

-12x - 13x + 7 - 7

• -1x + 0

• -25x

• -25x -14

• -1x + 1

Tags

CCSS.7.EE.A.1

Contains only numbers and operations and does not have an equal sign.

• Is an expression

• Is not an expression

• is an equation

• is not an equation

Tags

CCSS.6.EE.A.2B

Contains numbers and operations and variables but does not have an equal sign.

• Is variables

• Is a numerical expression

• is an algebraic expression

• is an equation

Tags

CCSS.6.EE.A.2B

Combine the following:

3x + 2 - 4x - 8 + 10 - x

• -x + 6

• -2x + 16

• -4x - 2

• 6x - 20

Tags

CCSS.7.EE.A.1

Which algebraic expression results in 20x?

• -12x - 13 + 7 - 7

• x + 7x + 12x

• -9 + 3x - 8x

• 7x - 3y + 9x

Tags

CCSS.7.EE.A.1