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3(a+5) -2(a+a) explain step by step​

Answer :

SPACEGO

Answer:

-a + 15

General Formulas and Concepts:

Pre-Algebra

  • Distributive Property

Algebra I

  • Combining Like Terms

Step-by-step explanation:

Step 1: Define

3(a + 5) - 2(a + a)

Step 2: Simplify

  1. Combine like terms:                    3(a + 5) - 2(2a)
  2. Distribute 3:                                  3a + 15 - 2(2a)
  3. Multiply:                                        3a + 15 - 4a
  4. Combine like terms:                    -a + 15

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