To use the distributive property on the expression \( 7(q - 4r + 1) \), we will multiply each term inside the parentheses by 7.
Let's distribute:
\[ 7(q - 4r + 1) = 7 \cdot q + 7 \cdot (-4r) + 7 \cdot 1 \]
Calculating each term:
- \( 7 \cdot q = 7q \)
- \( 7 \cdot (-4r) = -28r \)
- \( 7 \cdot 1 = 7 \)
Putting it all together, we get:
\[ 7(q - 4r + 1) = 7q - 28r + 7 \]
Thus, the equivalent expression is:
\[ 7q - 28r + 7 \]