Question

Which of the following expressions is equivalent to (10n - 8) - (4n + 3) Explain why you choose the answer. SHOW ALL STEPS:

A. 6n - 11

B. 6n + 5

C. 14n + 5

Answer 1

Answer: A. 6n-11

Explanation:

First, ignore the parenthesis because it is addition and subtraction so they are commutative. 10n-4n = 6n and -8-3 is the same as -8+-3 which is -11. Combining the answer gives 6n-11.