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\(5\) times \(n\) is three less than twice \(n.\) What number is three less than twice \(n?\)

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Re: \(5\) times \(n\) is three less than twice \(n.\) What number is three less than twice \(n?\)

by Brent@GMATPrepNow » Fri May 15, 2020 5:38 am
Gmat_mission wrote: ↑
Fri May 15, 2020 2:07 am
 \(5\) times \(n\) is three less than twice \(n.\) What number is three less than twice \(n?\)

(A) -5

(B) -2

(C) -1

(D) 3

(E) 5

[spoiler]OA=A[/spoiler]

Source: Magoosh
5 times n is three less than twice n.
We can write: 5n = 2n - 3
Subtract 2n from both sides to get: 3n = -3
Solve: n = -1

What number is three less than twice n?
In other words, we want to find the value of 2n - 3
Replace n with -1 to get: 2(-1) - 3
Evaluate to get: -2 - 3 = -5

Answer: A

Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
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