To solve the equation \( 3n + 9 + 4n = 2 \), follow these steps:
Step 1: Combine like terms on the left side to get \( 7n + 9 = 2 \).
Step 2: Subtract 9 from both sides to get \( 7n = -7 \).
Step 3: Divide both sides by 7 to get \( n = -1 \).
So, to summarize:
- Step 1: Combine like terms to get \( 7n + 9 = 2 \).
- Step 2: Subtract 9 from both sides to get \( 7n = -7 \).
- Step 3: Divide both sides by 7 to get \( n = -1 \).