Lesson 4 - The Language of Algebra - Variable Expressions

Gap-fill exercise

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Fill in all the gaps, by selecting the Pull Down Box Arrow next to each gap. Select the correct answer.

Substitute the number 6 for the number x of each variable expression and then evaluate them.

1. (x - 2) + 13

2. x + (7 - x)

3. 3 (x - 4) - 16

4. 4x + 6x

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