Question

r + 15

• \frac{3}{4}r

Explanation:

Step1: Combine like terms for \( r \)

We have \( r - \frac{3}{4}r \). Since \( r = \frac{4}{4}r \), then \( \frac{4}{4}r - \frac{3}{4}r = \frac{4 - 3}{4}r = \frac{1}{4}r \).

Step2: The constant term remains

The constant term is \( 15 \), so when we combine \( r + 15 - \frac{3}{4}r \), we get \( \frac{1}{4}r + 15 \).

Answer:

\( \frac{1}{4}r + 15 \)