Evaluate the expression for b = 9. -b = ?
Understand the Problem
The question is asking us to evaluate the expression '-b' when the variable 'b' is given a specific value of 9. This requires substituting 9 into the expression and calculating the result.
Answer
$-9$
Answer for screen readers
$-9$
Steps to Solve
- Substitute the value of b
We are given that $b = 9$. We will substitute this value into the expression $-b$.
- Evaluate the expression
Replace $b$ with 9 in the expression:
$$ -b = -9 $$
- Final answer
Thus, after evaluating, we get:
$$ -b = -9 $$
$-9$
More Information
The expression $-b$ simply represents the negative of the value of $b$. When $b$ is 9, the negative value becomes $-9$. This is a basic operation in algebra involving substitution.
Tips
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