To evaluate the expression \( n \cdot 3 - 3n + 12 \) when \( n = 4 \), follow these steps:
1. Substitute \( n = 4 \) into the expression:
\[ 4 \cdot 3 - 3 \cdot 4 + 12 \]
2. Perform the multiplications:
\[ 12 - 12 + 12 \]
3. Perform the addition and subtraction from left to right:
\[ 12 - 12 = 0 \]
\[ 0 + 12 = 12 \]
Therefore, the value of the expression when \( n = 4 \) is:
\[
12
\]
Evaluate the expression below when n = 4 if needed answer as a fraction or a decimal
n*3 - 3n + 12
1 answer