Chapter 3 Expressions OST Review (7th grade)

Select the three expressions that are equivalent to -2(4 - 3x) + (5x - 2).

• 2x - 10

• 11x - 10

• -8 - 11x - 2

• -8 - 11x - 2

• -8 + 6x + 5x - 2

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2017 #3

Create an expression equivalent to

2(3x - 1) - 3x + 4

using the least number of terms.

Mathematical Equivalence

ON

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2018 #20

The relationship between the number of cups of water, w, and the number of cups of lemon juice, j, used in a recipe is described by the equation shown.

j = 2w.

How many cups of water are needed for each cup of lemon juice?

Mathematical Equivalence

ON

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Practice Test #7

Create an expression equivalent to

4(2x - 1) + 3(1/2x + 5)

that does not use parentheses.

Mathematical Equivalence

ON

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2021 #40

A square is shown. The perimeter of the square can be represented by the expression 16x + 24. Willa wants to write an equivalent expression for the perimeter that shows the side length of the square. Create an equivalent expression that Willa could write.

Mathematical Equivalence

ON

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Practice Test #9

Two identical square tables are combined to create a rectangular table, as shown. A third identical square table will be added to create a longer rectangular table. Which expression reveals the number of chairs along each side of the longer rectangular table?

• A) 2(4) + 2(2)

• B) 2(6) + 2(2)

• C) 3(2) + 3(2)

• D) 4(2) + 4(2)

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2019 #29

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2022 #16

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2024 #46

Mathematical Equivalence

ON

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2025 #16

Type the full expression below.

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2025 #22