To evaluate the expression \(16a + 3\) when \(a = -5\), substitute \(-5\) for \(a\) in the expression:

\[
16a + 3 = 16(-5) + 3
\]

Now calculate:

\[
16(-5) = -80
\]

\[
-80 + 3 = -77
\]

Thus, the value of the expression is:

\[
\boxed{-77}
\]

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Would you like me to explain further or clarify any part of the calculation?  
Here are 5 related questions you might find helpful:  
1. What happens if \(a = 0\) in this expression?  
2. How would the result change if \(a\) was a fraction instead?  
3. Can you evaluate \(16a + 3\) for multiple values of \(a\)?  
4. What is the effect of changing the coefficient of \(a\) from 16 to another number?  
5. How does substituting negative values differ from positive ones in similar expressions?  

**Tip:** Always double-check signs when substituting negative numbers to avoid common mistakes!

Evaluate the expression 16a+3 when a = -5

Learn how to evaluate the expression 16a + 3 when a = -5. This step-by-step guide demonstrates substitution and simplification, covering key algebra concepts. Perfect for students in Grades 6-8.

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