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24-02-2021
Mathematics

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1. Which of the following is an example of a set of like terms? *

A. 2x, -4x, -8x

B. 2y, 7y, 27

C. 8, 2a, -4

D. -2x, -2y, -2xy
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24-02-2021

Answer:

Variable, In algebra, a symbol (usually a letter) standing in for an unknown numerical value in an equation. Commonly used variables include x and y (real-number unknowns), z (complex-number unknowns), t (time), r (radius), and s (arc length).

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24-02-2021

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