If the function r(s) is defined as 2s+3 for all values of s and r(4)=x, what is the value of r(x)?

Answer

To solve the problem, we need to follow these steps:

1. **Understand the function**: The function \( r(s) \) is defined as \( r(s) = 2s + 3 \).

2. **Calculate \( r(4) \)**: We need to find the value of \( r(4) \) using the function definition.
\[ r(4) = 2(4) + 3 \]
\[ = 8 + 3 = 11 \]
So, we have \( r(4) = x \) which means \( x = 11 \).

3. **Calculate \( r(x) \)**: Now we need to find \( r(x) \). Since we found that \( x = 11 \), we need to calculate \( r(11) \).
\[ r(11) = 2(11) + 3 \]
\[ = 22 + 3 = 25 \]

Thus, the value of \( r(x) \) is \( 25 \).