Question

3(-2 - n) = -9 -4n answer

Answer 1

n = -3

General Formulas and Concepts:

Pre-Algebra

• Order of Operations: BPEMDAS
• Equality Properties

Explanation:

Step 1: Define equation

3(-2 - n) = -9 - 4n

Step 2: Solve for n

1. Distribute 3: -6 - 3n = -9 - 4n
2. Add 4n to both sides: -6 + n = -9
3. Add 6 to both sides: n = -3

Step 3: Check

Plug in n to verify it's a solution.

1. Substitute: 3(-2 - -3) = -9 - 4(-3)
2. Simplify: 3(-2 + 3) = -9 - 4(-3)
3. Add: 3(1) = -9 - 4(-3)
4. Multiply: 3 = -9 + 12
5. Add: 3 = 3