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Solve the equation: -9 + 3(7n - 1) < 2n - 1 + 9. What is the answer?

a. -2
b. 2
c. -1
d. 3

User Bridgette
by
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1 Answer

2 votes

Final answer:

The inequality -9 + 3(7n - 1) < 2n - 1 + 9 simplifies to n < 20/19 after distributing, combining like terms, and isolating n. No provided answer choices match, so the correct answer is 'None of the above'.

Step-by-step explanation:

To solve the inequality -9 + 3(7n - 1) < 2n - 1 + 9, first distribute the 3 into the parentheses:

-9 + 21n - 3 < 2n - 1 + 9

Next, simplify both sides of the inequality:

21n - 12 < 2n + 8

Now, move all n terms to one side by subtracting 2n from both sides:

19n - 12 < 8

Then, move the constant term to the other side by adding 12 to both sides:

19n < 20

Finally, divide both sides by 19 to isolate n:

n < 20/19

The simplified form of the inequality shows that n is less than approximately 1.05, which is not an answer choice provided. Therefore, the answer must be 'None of the above'

User Rthbound
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