Advanced MathEasyCoefficient of a after combining
Advanced Math practice question
The expression 4a + 3b − a simplifies to ka + 3b, where k is a constant. What is the value of k?
Answer: 3
4a − a = 3a.
Common wrong answers
- If you answered 4
- 4 ignores the −a.
- If you answered 5
- 5 adds instead of subtracting.
- If you answered 6
- 6 combines the 3b with the a terms.
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