Respuesta :

Space

Answer:

9y² + 2x

General Formulas and Concepts:

Algebra I

  • Combining Like Terms

Step-by-step explanation:

Step 1: Define

7x + 18y² - 9y² - 5x

Step 2: Simplify

  1. Combine like terms (y²):                    9y² + 7x - 5x
  2. Combine like terms (x):                      9y² + 2x

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