Exercise 2: Concepts

Practice the essential concepts to simplify algebraic expressions

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QUESTION OF
Views #: 565
Questions #: 13
Time: 10 minutes
Pass Score: 80.0%
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What is the property used to simplify the following expression?

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volume_mute

4(9t) = (4 • 9)t = 36t

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What is the property used to simplify the following expression?

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volume_mute

-6y • 2 = -6 • 2 • y = -12y

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Fill in the blanks with the appropriate sign

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  1. 2(x + 4) = 2x (1) 8
  2. 2(x - 4) = 2x (2) 8
  3. -2(x + 4) = -2(3) 8
  4. -2(-x - 4) = 2x (4) 8
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Fill in the blanks to combine like terms

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  1. 4m + 6m = ((1) + (2))m = (3)m
  2. 30n2 - 50n= ((4) - (5))n2 = (6)n2
  3. 12 + 32d + 15 = 32d + (7)
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Fill in the blanks

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Like terms can be combined by adding or subtracting the (1) of the term and keeping the same (2) with the same exponents.

Please drag and drop the selected option in the right place or type it instead
variables
coefficients
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Simplify the following expression

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5(2x)

Do not change the order of coefficients and variables

Missing
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Simplify the following expression

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5 + 2x

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Simplify the following expression

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6(-7x)

Missing
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Simplify the following expression

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6 -7x

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Simplify the following expression

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2(3x)(3)

Missing
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Simplify the following expression

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2 + 3x + 3

Start with the terms that do not have variables and do not change the order of coefficients and variables. 

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Distributing multiplication by -1 changes the ______ of each term within the parentheses

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Missing
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Add the missing sign

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-(x + 10) = -(1) 10

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Keywords
Year 7