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16-09-2022
Mathematics

contestada

When solving an equation, Carmen's first step is shown below. Which property
justifies Carmen's first step?
Original Equation:
21(x² + 2) (3)
-
2 = -9x² + 2
First Step:
7(x²+2) - 2 = −9x² + 2
14

Respuesta :

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