Adding Expressions

What is the first step when adding this expression?

(-2x + 5) + (6-2x)

• Get rid of the parentheses

• Solve the first group of parentheses, because PEMDAS says work left to right

• Combine like terms

• it is already simplified, you cannot do anything

Tags

CCSS.6.EE.A.2

CCSS.6.EE.A.3

What is the second step when adding this expression?

(-2x + 5) + (6-2x)

• combine like terms

• solve each group of parentheses and then add

• get rid of the parentheses

• carry the 5

Tags

CCSS.6.EE.A.3

What are the like terms in this expression?

(-2x + 5) + (6-2x)

• 5, -2x, and 6 -2x

• -2x and -2x, 6 and 5

• you can't combine them any more

• -2x, 5, 6 and 2,x, there are no like terms

Tags

CCSS.7.EE.A.1

What is the simplified version of

(-2x + 5) + (6-2x)

• -4x + 11

• 3 + 4

• 5x +11

• 4x -11

Tags

CCSS.6.EE.A.2

CCSS.6.EE.A.3

True or false:

(6x + 12) + ( 4x -4) = 10x + 8

• True

• False

Tags

CCSS.6.EE.A.2

CCSS.6.EE.A.3

CCSS.6.EE.A.4

What are the steps of adding expressions (In order)

• 1) You need to get rid of the parentheses

• 2) You need to combine like terms

• 1) You need to combine like terms

• 2) You need to get rid of the parentheses

Tags

CCSS.6.EE.A.3

Simplify

(2x + 17) + (5x -7)

• 7x + 24

• 3x + 10

• 7x + 10

• This cannot be simplified

Tags

CCSS.6.EE.A.2

CCSS.6.EE.A.3

True or false:

(2x +1) + ( 1y)

can be simplified

• true

• false

• Well, the expression itself can be simplified, as the parentheses can be taken away (step 1), but there are no like terms, so the numbers will not change. (Step 2)

Tags

CCSS.6.EE.A.2

CCSS.6.EE.A.3

Simplify this:

(10x +10) + (10 +10x)

• 20x +20x

• 20 + 20

• 20x + 20

• 40

Tags

CCSS.6.EE.A.3

CCSS.6.EE.A.4

can 43x + 2 be simplified?

• No way!

• Absolutely.

Tags

CCSS.6.EE.A.2

CCSS.6.EE.A.3

CCSS.6.EE.A.4