Math Problem Statement
Evaluate the expression 4 - 3x - 8 when x = -2.
Solution
The problem asks to evaluate the expression when .
We can solve this step by step:
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Substitute into the expression:
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Simplify the multiplication:
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Now, combine the terms:
So, the value of the expression when is 2. The correct answer is option c: 2.
Would you like more details or have any questions?
Here are 5 related questions to deepen your understanding:
- How would the result change if in the same expression?
- What happens to the expression if you swap the signs in front of ?
- Can you factor the expression before substituting values?
- How would the value change if the expression was ?
- How can you solve this expression using function notation?
Tip: Always handle the sign carefully when substituting negative values into expressions.
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Math Problem Analysis
Mathematical Concepts
Algebra
Substitution
Simplification
Formulas
Basic linear expression simplification
Theorems
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Suitable Grade Level
Grades 6-8