To solve the equation \( 3n + 9 + 4n = 2 \), we can follow these steps:
Step 1: Combine like terms to get \( 7n + 9 = 2 \).
Step 2: Use subtraction as the inverse operation to get \( 7n = -7 \).
Step 3: Divide both sides by 7 to get \( n = -1 \).
So, the steps in order are:
- Combine like terms to get \( 7n + 9 = 2 \).
- Use subtraction as the inverse operation to get \( 7n = -7 \).
- Divide both sides by 7 to get \( n = -1 \).