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Solve for a. 3(a+3)+6=30

User TOMARTISAN
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1 Answer

5 votes

Answer:

a = 5

General Formulas and Concepts:

Order of Operations: BPEMDAS

Properties: Distributive, etc.

Explanation:

Step 1: Write equation

3(a + 3) + 6 = 30

Step 2: Solve for a

  1. Distribute 3: 3a + 9 + 6 = 30
  2. Combine like terms: 3a + 15 = 30
  3. Subtract 15 on both sides: 3a = 15
  4. Divide 3 on both sides: a = 5

Step 3: Check

Plug in a to verify it's a solution.

  1. Substitute: 3(5 + 3) + 6 = 30
  2. Add: 3(8) + 6 = 30
  3. Multiply: 24 + 6 = 30
  4. Add: 30 = 30
User Ianmcook
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