Simplify: 7 - (-4 - 3) - 9.
AEquals 5
BEquals -6
CEquals -1
DEquals 19
Answer & Solution
Correct answer: A. Equals 5
1. Simplify inside the parentheses first: -4 minus 3 equals -7.
2. The expression becomes 7 minus (-7) minus 9, which simplifies to 7 plus 7 minus 9.
3. Work left to right: 7 plus 7 equals 14.
4. Finish the subtraction: 14 minus 9 equals 5.
_Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 1 "Foundations", section 1.3 Add and Subtract Integers_
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